Mw2 callsigns : titles and emblems

If u were struggling to unlock some of the titles or emblems mw2 has to offer, here is an almost complete list:
Title Rewarded for
1st Lt. Attaining rank of 1st Lieutenant (Rank 34)
1st Sgt. Attaining rank of 1st Sergeant (Rank 13)
1bullet2kill Completing the 2 Kills 1 Bullet challenge (killing two people with one sniper bullet) - confirmed
2Fast Complete the challenge Slight of Hand Pro I- (Confirmed)
4 the Record
6fears7 Earn killstreak rewards requiring 7,8, and 9 kills. (Confirmed)
<3 Misery Loves Company challenge (Blow yourself + an enemy up with a holding grenade; confirmed)
Absentee Killer Get a Game Winning Killcam with a Sentry Gun (confirmed)
Afterburner call in 50 (probably 100) airstrikes (precision and stealth are both airstrike counted)
Airborne Call in 3 Pavelows getting the 21 ton giant challenge (confirmed)
All Pro Complete the "All Pro" challenge (2 headshot kills with 1 bullet) (confirmed)
All Your Base Complete challenge Extreme Cruelty by killing everyone on the enemy team without dying (confirmed)
Accident Prone Fall 15 feet and survive.(confirmed)
Amplifier Call In A UAV
Angel of Death Call in 10 AC-130s (confirmed)
Armed and Dangerous Complete challenge Bling Pro VI (900 kills using weapon w/2 attachments)(confirmed)
Art of Stealth Get Ninja Pro VI(confirmed)
AUG HBAR unlock all of the AUG HBAR attachments
Backfire Kill the person who planted the C4 or Claymore by shooting it
Backsmasher Complete Backsmasher challenge (Kill an enemy by hitting them in the back with a Riot Shield) (confirmed)
Backstabber Complete challenge Backstabber (confirmed)
BAM! Complete challenge Never Forget
Bandolier Resupply 250 times while using Scavenger (confirmed)
Barrett.50cal? Unlock all .50 cal attachments (confirmed)
Behind Enemy Lines Get 10 kills without having any killstreaks selected. Unlocked with 8-bit Price.
Big Bada Boom Get 5 RPG Multi-Kills (Confirmed)
Big Brother
Bite the Bullet 1000 kills with stopping power (confirmed)
Blindfire Complete the Blindfire challenge (kill an enemy while blinded by a flashbang)(confirmed)
Bling Bling Complete Bling Pro V Challenge (confirmed)
Blood Brothers Complete Team Player II: 15 wins in Team Deathmatch. (confirmed)
Blood Money Get payback with a headshot 5 times (confirmed)
Blunt Trauma Get 2 kills using the riot shield (2 blunt force kills with riot shield)(confirmed)
Boilermaker Kill 5 enemies by exploding a car
Boom's Away!
Bombshell Kill the bomb carrier in Sabotage or S&D
Boom Boom
Boom! Headshot LMG Expert II (confirmed)
Booted Kill 100 people who are on your team(Confirmed)
Booyah!
Bow Down Crouch Shot II (confirmed)
Broken Arrow 50 Airstrikes (Precision or Any Airstrike, not sure which)
Bounty Hunter
Bulletproof DEFLECT a total of 10000 bullets with a riot shield (confirmed)
Bullseye Complete Plastered I (5 stick kills with semtex) (confirmed)
C4 And After Unlock the challenge C4 Shot I (15 C4 Kills)
Carpet Bomber Kill 5 enemies with single airstrike
Catch Shrapnel Kill an enemy with a claymore. (confirmed)
Charity Case Take 3-5 crates from teammates airdrops.
Cheater
Chick Magnet Call in 2 EMP's (complete challenge),   Some other way appears to be possible.
Click Click Boom Kill an enemy with C4 while you are in Last Stand.(confirmed)
Cloak and Dagger Complete the Carnie I challenge (5 throwing knife kills) (confirmed)
Close Support Complete Hardline VI challange (confirmed)
Cluster Bomb
Cobra Strike Call in 10 Chopper Gunners.
Companion Crate Complete Air Mail II challenge (call in 25 care packages) (confirmed)
Completely Numb With painkiller take over 100% of normal damage from an explosion and survive (confirmed).
Concussive Barrage Damage an enemy and then finish him off with a stun grenade.
Counterintelligence Complete Scrambler Pro VI challenge
Crackin' Skulls Complete Assault Rifle: Expert II challenge (unconfirmed)
Da Bomb Plant the bomb or kill the bomb carrier? (unconfirmed) 
DZ Clear Call in Supplies 5 times (confirmed).
Dead Man's Switch Injure someone then finish him off with your pistol on Last Stand (unconfirmed)
Deadline Complete Hardline Pro V Challenge
Death From Above Get last kill of match with AC-130 (Must unlock and complete the challenge to obtain title.) (confirmed)
Decathlete Run 104 miles with Marathon
Destroyer Plant explosives and destroy the objective.
Devastator Complete Tango Down Challenge
Dictator Complete the Dictator challenge (unload an entire LMG magazine into enemies without missing). (confirmed)
Direct Connect
Dishes are Done Get a payback kill with a claymore (confirmed)
Dish the Rock Most assists in a game
Disruptor Obtained by completing Scrambler Pro I challenge.
Double Down Get 25 kills using the Bling perk (confirmed)
Drifter Destroy a car
Dronekiller Last kill in a match with a Predator Drone (Must unlock and complete the challenge to obtain title.) (confirmed)
Dying Breath 100 last stand kills.
Early Detection Use UAV in the beginning of a new match(unconfirmed)
End of Line Call in 5 Tactical Nukes. (Confirmed)
Enemy of the State complete Enemy of the State challenge: kill 3 enemies while you are the only surviving member of your team (play hardcore and/or S&D)
Enemy with benefits Group hug challenge (Sticky an enemy and kill at least two people with the grenade) (confirmed)
EOD
Epic
Kill the whole enemy team within 10 seconds.
Excalibur 100 knife kills
Explosive Ordinance Related to Search and Destroy(Disarm 2 bombs?)
Eyes Above
FAL Unlock all FAL attachments
F.N.G. Unlocked from start
FAMAS Unlock all FAMAS attachments
Faceoff 5 headshots with an assault rifle
Fast Track Run/sprint alot. (Got it this way)
Finishing Touch Get the winning kill in a match with a Precision Airstrike (Must unlock and complete the challenge to obtain title.) (confirmed)
Fired! Complete the "You're Fired" challenge (50 kills with a Harrier after you Prestige)
Fire and Forget Call in 25 Sentry Guns
Flatliner Complete The Brink challenge (confirmed)
Flying Tank Call in 10 Pave Lows (confirmed)
Flyswatter Shoot down an enemy helicopter (confirmed)
Frag Out Complete Grenade Kill I challenge (kill 10 enemies with grenades) (confirmed)
Freerunner Complete Marathon V challenge (sprint 52 miles with Marathon perk)
Friends with Benefits Kill an enemy by sticking semtex to an ally (confirmed)
Full Arsenal First One Man Army challenge
Full Force Get 10 explosive kills while using danger close. (confirmed)
Full Throttle
Gat Trigger
Gen. Reach General Rank
Get Real Win one game of Hardcore Team Deathmatch (confirmed)
Get to the Choppa! Call in 3 Chopper Gunners
Ghillie in the Mist Complete Challenge "Ghillie in the Mist II" - 100 1-shot kills with the sniper. (confirmed)
Ghostrider Complete Air to Ground II (Confirmed)
Givin' Static Call in 5 Counter-UAVs (confirmed)
Global Thermonuclear War Call in 2 nukes (confirmed)
Godhand Complete the challenge AC130 Veteran I by calling in 3 AC130's (confirmed)
Grassy Knoll Gillie in the Mist I (Get 50 one shot kills with sniper rifle) (Confirmed)
Hair Trigger Slight of hand V (confirmed)
Hands Free X Number of kills with sentry gun.
Hardcore Only Win 5 rounds in Hardcore Team Deathmatch:Complete Hardcore Team Player II (confirmed)
Hard Target Complete "Airborne" Challenge (Get a 2 kill streak with bullets while in midair)
Hard To Kill Get 2 kills while in Final Stand (confirmed)
Headrush
Heartbreaker
Hello! My Name is......   Kill Gamer "SoldGamble" in a Public Match (confirmed) 
High Caliber Using Stopping Power (confirmed)
High Command
Hijacker Steal 100 enemy care packages (confirmed)
Highlander Finish an entire match without dying (Confirmed)
Hired Gun
Hi Def Get the game winning kill cam with a chopper gunner. (Must unlock and complete challenge to obtain title.) (confirmed)
Hot Shot
How The? Kill an enemy by using bullet penetration to blow up an explosive through a wall. (Must unlock and complete challenge to obtain title.) (confirmed)
I.C.E. Man
ID Thief Use Copycat in a match, and kill the player that you copied (confirmed)
I'm Rich Get 5 Payback kills using C4
Impaler Complete the challenge Commando Pro I
Intergalactic Win a Sabotage match (x times?)
Invisible Complete Silencer challenges (x times?) Complete Cold Blooded Pro I Challenge
Iron Lungs Getting 200 hip fire kills while using Steady Aim Pro (confirmed)
It's Personal Complete the 'It's Personal' challenge (kill someone with a throwing knife after wounding them) (confirmed)
It's Sabotage Win 5 Sabotage Matches
Jack-in-the-Box Kill an enemy within 5 seconds of spawning via Tactical Insertion 10 times (confirmed)
Joint Ops Kill an enemy hidden by smoke from a smoke grenade
Juggernaut Complete "Solid Steel: III" challenge by surviving 50 explosions with blast shield.
Jump Jet Get 5 Harrier airstrikes. (confirmed)
K Factor 1001 bullet penetration kills. (confirmed)
Kill For Good
Kleptomaniac Steal an enemy's care package.
Lights Out Complete the Think Fast Flash challenge. (kill an enemy with a flash grenade, direct impact)
Live Long... Live for 5 consecutive minutes.You must complete the challenge "Survivalist" for this to unlock. (confirmed)
Living Dead Survive in Final Stand long enough to get back up. (confirmed)
Lone Wolf Win (finish in the top 3) free-for-all 3 times, this requires the challenge unlocked (confirmed)
Look! No Hands!
Low Profile Prone shot II (confirmed)
M16A4 Get all M16A4 weapon attachments. (confirmed)
M4A1 Get all M4A1 weapon attachments. (confirmed)
Mad Man Get 5 revenge kills with frag grenades (Bang For Your Buck: I challenge)
Maj. Reach Major Class
Mastodon Complete the challenge requiring you to get a 5:1 kill to death ratio. (confirmed)
Martyr Kill one enemy with martyrdom death streak perk (confirmed)
Mastermind Get 15 Claymore Kills
MMMMM... Brains Complete Both Barrels Challenge. (Kill an enemy with the Ranger by firing both barrels at the same time) (confirmed)
MOAB Use a Tactical Nuke (could possibly be right before your team is about to lose, awarded with the rotating green star emblem)
Money Shot Get a payback in the game winning killcam. (confirmed)
MVP Assassian
My Li'l Pwny You get it by getting 10 silenced kills. It can only be obtained once you prestige though. As you have to complete the prestige challenge.
NBK Get 3 Longshot Kills in one life (confirmed)
Nerves of steel Either Complete the Colour of Money Challenge or Steady Aim Pro VI
New Jack Get payback with a throwing knife. (confirmed)
Ninja Kill 50 people with your knife or riot shield using the Commando perk (Commando Pro V)(confirmed)
No. Kill someone cooking off a grenade before they throw it (confirmed)
Noob Tuber Complete Ouch! challenge(have to have unlocked the challenge), kill an enemy with a rifle grenade direct impact(confirmed)
Not in the face! Be killed with a direct impact grenade from a launcher to the head (confirmed)
OG Get last kill of match with Attack Helicopter (Must unlock and complete the challenge to obtain title.) (confirmed)
OMFG Complete Cruelty challenge
Omnicide Complete Omnicide! (Intimidation) challenge - Kill entire team (4+) within 10 seconds
Omnipotent Call in 50 UAVs (confirmed)
One Inch Punch Complete the Sleight of Hand VI Challenge
Overwatch Call in 5 UAVs (confirmed)
Owned. Get last kill of match using a Riot Shield.(confirmed)
P90 Unlock all attachments for the P90
Perfectionist Fire an entire Sniper magazine into your enemies without missing (confirmed)  
Philanthropist Allow 50 teammates to take your airdrops.
Phoenix Rising
Pineapple Express Get 25 kills with frag grenades (confirmed)
Plane Whisperer Complete Airstrike Inbound I (50 Precision, Stealth, or Harrier strikes) (confirmed)
Plastique Complete the first C4 Challenge.
Pop Off Complete SMG Head Shot II
Preemptive Strike Hardline Pro I (confirmed)
Protect and Serve Complete Sponge I with riot shield (confirmed)
Pro Gambler
Public Enemy Win MVP Team Deathmatch (confirmed)
Pushin' Daisies Fall to your death. (confirmed)
Pyromaniac Complete Backdraft I (confirmed)
Quick Change Artist Get 300 Kills with One Man Army
Quick Draw Complete Fast Swap challenge (confirmed)
Rainmaker Get a payback kill by sticking the enemy with a Semtex. (confirmed)
Rain of Fire Complete Air to Ground I
Ready. Aim. Fire!
Reign Down Call in 5 attack helicopters
Rejected Get Backdraft II challenge (confirmed)
Reloaded First scavenger challenge
Remote Viewer X-Ray Vision I (confirmed)
Re-Zero Complete Gillie In The Mist III (confirmed)
Rival Kill the same enemy 5 times in a single match (confirmed)
Robin Hood Get 5 revenge kills using last stand.
Rolling Thunder
S.S.D.D. Reach Private class
S.S.S.G
Sarge
Scar-H By getting all attachments for this gun (confirmed)
Schooled
Sgt Reach Sergent class
Share Package have a teamate secure 3 emergency air drops (confirmed)
Shock and Awe
Shot Down Complete Crouch Shot I (Confirmed)
Shot Over
Sidekick 3 kills in a row with your secondary weapon (confirmed)
SIGINT  Call in 25 Counter-UAVs (confirmed)
Silence
Silent Shot
Silent Strike Complete challenges for the 'Ninja' perk.
Silent Veteran Get 50 silenced weapon kills after you prestige
Skeet Shooter Hard Landing Challenge (kill someone while they are in mid-air)
Sky Commander
Smash Hit 3 Kill Streak with a Riot Shield Melee. (confirmed)
So Baked Kill 5 enemies with cooked grenades. (confirmed)
Solid Steel Survive 30 10 grenades with the Blast Shield (complete Solid Steel I)
Sonic Boom Complete Danger Close Pro V challenge (250 kills with explosives)
Spectre
Speed Demon Complete Lightweight Pro I Challenge
Spy Game Get the Ninja Pro V challenge (confirmed)
Squawk Box 50 attack helicopters called (confirmed)
Starfish Prime Call in 5 EMPs (confirmed)
STD
Stickman Complete the 'Stickman' Challenge. (Stick a Semtex to the enemy in a Game Winning Killcam.)
Straight Up Call a Harrier Strike 25 times.
Streaker Get 10 kills in a row without dying. (Must unlock and complete challenge to obtain title.) (confirmed)
Stuck on You Complete Plastered II (Stick 25 times with semtex grenades)
Stun Gun Complete Slow But Sure challenge (confirmed)
Submit to Authority X-Ray Vision II (confirmed)
Suppressor 250 number of kills with silencer
Sureshot Complete Steady Aim Pro I (10 hip fire kills) (confirmed)
Surgical Go through an entire magazine of assault rifle ammo without missing a shot. (confirmed)
Ta Da! Complete the Jack-in-the-Box:II challenge. (confirmed)
TacDel Complete Tactical Deletion challenge (Kill 25 enemies that spawn using Tactical Insertion) (confirmed)
Take a Stab Complete the Carnie II challenge (Get 15 kills with throwing knives) (confirmed)
Tango Down Kill every member of the opposing team.
Team Player Win 5 Team Deathmatch Games
Techno Killer Get a game winning killcam with a stealth bomber
Tha Bomb Kill bomb planter 10 times
The Automator
The Avenger Avenge the death of 3 teammates
The Bigger They are... Kill the number one player on the enemy team 3 times in a row (must unlock and complete challenge) (confirmed)
The Denier Complete The Denier Challenge (confirmed)
The Feared Come 1st, 2nd or 3rd in 3 Free-For-All matches. (Confirmed)
The Grim Reaper Kill 5 members of the enemy team with a single Predator missle
...The Harder They Fall Kill the number one player on the enemy team 5 times in a row
The Impaler Set number of melee kills? (complete Commando challenge - 2 melee kills with Commando perk)
The Invincible
The Legend Be the last man standing on your team in a search and destroy match. (confirmed)
The Mad Bomber Plant two bombs in Search and Destroy or Sabotage.
The Mastodon Complete the Star Player challenge. Get a 5:1 kill death ratio (confirmed)
The Prestige Prestige 1 time and reach lvl 5.
The Ripper Get a 3 kill streak with your knife completing challenge.
The Specialist Achieve rank 9. (confirmed)
The Watchman Call in 100 UAV's or Counter UAV's (confirmed)
Think Fast! Direct impact kill using Frag grenade (must unlock and complete challenge to obtain) (confirmed).
Thermonuclear War Get 2 Tactical Nukes (confirmed)
Time is Money Get 5 payback kills with semtex grenades (confirmed)
Time on Target 5 Precision Airstrikes (confirmed)
To the Extreme Win a Team Hardcore match with the top score (MVP Team Hardcore challenge) (confirmed)
Top Gun
Toxic Get Nuked. You must be alive at the time the nuke goes off. If you are respawning you will not get the title (confirmed)
Trackstar Complete the challenge Marathon Pro I
Transformer Get a Game Winning kill with a Pave Low (Confirmed)
True Liar Get the last kill of a match with a Harrier (from the movie True Lies) (confirmed)
UAV Jammer
Unbelievable Get a game winning kill with a throwing knife (Must unlock and complete challenge)
Unbreakable Deflect 10 explosions with the riot shield
Voyeur Call in 25 UAV's (confirmed)
Vulture Complete the challenge Scavenger VI
Wargasm Complete the "Wargasm" challenge (get all 3 of your killstreak rewards in under 20 seconds)
X-Ray Vision X number of Bullet Penetration Kills
Known emblems

Emblem Image Rewarded for
8-bit Price Achieve a kill streak of 10 while having no kill streak awards equipped. (confirmed, it has nothing to do with prestiging)
Sergeant Simon Riley A.K.A Ghost Win MVP in a Team Deathmatch (confirmed)
Al-Asad Plant 10 Bombs (confirmed)
SSgt. Griggs
Makarov Be the MVP in a Search and Destroy match (confirmed) (got this without playing search and destroy)
Soap
Dunn
Task Force 141
Unlocked at Rank 41 (confirmed)
HMMWV (Hummvee) Destroy a car (awarded with Drifter)
HMMWV with Rocket Launcher
Riot shield with a skull on (Complete the "Riot Shield Veteran III" Challenge) (Confirmed)
Shotgun shells (Awarded with MMMM... Brains. completing Both Barrels challenge)
Dogtags - (Default Starting Emblem)
Daisy Flower - (Awarded alongside "Pushin' Daisies" title) (confirmed)
Bar of pink soap -
Get a "Payback" by sticking a Semtex on an enemy.You have to get both "Stuck!" and "Payback" with the Semtex.  (CONFIRMED)
(2) Skulls
A Single Pistol - Complete "Sidekick" challenge (confirmed)
Bloody Handprint [Militia symbol] Awarded alongside "Streaker" (Confirmed)
Steaks
Boot Stomping Complete "Airborne" Challenge (Get a 2 kill streak with bullets while in midair)
Rank - (Composed of several emblems, awarded for attaining each MP rank)
Dual pistols
Shark face - ' I got this after i completed the 21 Ton Giant challenge 3.
Gorilla with Crown complete Enemy of the State challenge
Black Skull Complete the "Collateral Damage" challenge (confirmed)
Golden Eagle (Complete the "Flawless" challenge) Go entire match without dying (confirmed)
Man in Crosshairs (Black Crosshair on Mans head) Awarded with Perfectionist (confirmed)
Infinity Ward logo Complete "Wargasm" Challenge - Confirmed
Compass
Crutches
Marijuana leaf Awarded with The Denier challenge.
Heartbeat sensor Awarded with 'Givin' Static' callsign
Men raising flag (Iwo Jima) Awarded in Capture the flag.  I have never played CTF and have this emblem. AWARDED ALONG SIDE OF BLOOD BROTHERS!!!!!!!
Hearts
Tan Beret (22 SAS) Crouch Shot III (confirmed)
Red Beret (Airborne) Prone Shot III (confirmed)
Sea Sniper Emblem (Gold Globe & Anchor w/swords/sniper rifle)
Medic Helmet Awarded when have taken 100% normal damage while in pain killer mode by a explosive and live
Pair of Boots
Parachute Assigned with Accident Prone (confirmed)
Juggernaut head From Riot Shield Challenge - Two Kill streak with shield (confirmed)
Comic book-style Juggernaut head Awarded for absorbing so many shots with riot shield. (Confirmed)
UFO Kill someone, pick up their weapon, and kill them again with their own weapon.(confirmed)
Cartoon girl's head -
(Awarded alongside "Dishes are Done" title**)
Painkiller pill "(Once painkiller is active, survive enough to kill you normally as you kill another player)
Martyrdom grenade "(Awarded for getting a kill with the Martyrdom Death Streak)"
Copycat Head Copy someones class, then get a payback on that same person you copied.
Final Stand Icon Get back on your feet whilst in final stand or kills in final stand
Velociraptor Talon
Crossed Knives
A Single Throwing Knife Winning game kill with a throwing knife.
Porter Justice poster
"Bling" perk emblem Complete all the bling challenges
Ninja Shuirken Complete backstabber challenge (confirmed)
Binoculars Get 3 LongShot Kills in One Life
Snowmobile Complete the "Slow but Sure" challenge
The "Eye of Providence" Awarded alongside "How The?" title
Biological Hazard Symbol awarded for getting nuked (false. This has been rewarded without a nuke being deployed)
Pink Skull Complete Survivalist Challenge by surviving for 5 minutes. (confirmed)
Pig
8-Ball  
Infinity Ward Flask
Bloodied skull with a bullet hole in front of a green back. (Awarded when winning 30 Team Deathmatch matches (Team Player: III)) (confirmed)
Desert camo hat with a knife. (Awarded with It's Personal!)
Cobra helicopter. Possibly related to AT4-HS Challenges.
Ranger Helmet (Awarded when completing Assault Expert: III)
Pave Low (Acquired after calling in 25 Pave Low helicopters) (Received Mine After Destroying Many Helicopters)
Gatling Gun Received with Absentee Killer challenge
Red Devil Awarded for winning 15 Hardcore Team Deathmatch games. (Almost positive I got this from completing "Most Kills/Fewest Deaths" Accolade
Prestige Badges ModifyDeleteMove
Bomb with an evil face and the fuse burning
Recieved after winning 30 search and destroy missions
**Note: These may be attributed to subsequent or additional challenges that follow the listed title unlock - please confirm
Known animated emblems

Rotating Skull Awarded When getting to 10th Prestige
Rotating UAV - Call in 50 UAVs
Rotating Counter-UAV - Call in 50 Counter-UAVs
Rotating Air drop - Call in 50 Airdrops
Rotating Predator missile - Call in 50 Predator Missiles. Complete Air to Ground III Challenge
Rotating Emergency Airdrops - Call in 25 Emergency Airdrops
Rotating Sentry Gun - Call in 50 Sentry Guns.
Rotating Harrier - Call in 50 Harriers Complete Vertical Takeoff III Challenge
Rotating Nuclear Symbol - Call in 10 Tactical Nukes
Rotating Pave Low - Call in 25 Pave Lows
Rotating Attack Helicopter- Complete Attack Chopper III
Rotating AC-130 - Launch 25 AC-130's
Rotating Tesla Ball - Call in 10 EMPs
Rotating Modern Warfare Green Star (Call in a nuke in a game when your team is just about to lose the match: Confirmed)

thnx for Reading, hope it helps u , if u want the link with the titles an emblems images plz ask me for link. Feedback wud be appreciated.