How Embarrassing

Killed 4 members of the opposing team while carrying their flag.

The Black Knight

Shot off all 4 limbs on any combination of players over the course of a multiplayer match.

Where's The Competition?

Had a 5 to 1 or better Kill to Death ratio in a multiplayer match (minimum of 20 kills).

Every Bullet Counts

Finished a multiplayer match with 100% accuracy (Minimum of 10 kills).

Head Of The Class

Accumulated 100 headshots over Xbox LIVE in any mode.

One Shot Is All I Need!

Achieved 5 headshots in a row without dying using a sniper rifle in a multiplayer match.

Pacifist

Survived an entire Deathmatch without hurting anyone (minimum of 4 active players).

More Ammo For Me!

Performed 300 reloads in any multiplayer mode.

Gung-ho

Had a 1 to 5 or worse Kill to Death ratio in a multiplayer match.

Sneaky, Sneaky…

Accumulated 30 kills with a silencer over Xbox LIVE.

Aim In Vein

Achieved a 25% vital zone hit ratio in a multiplayer match.

Snake In The Grass

Killed 10 enemies while crouching in any multiplayer mode.

Mission Accomplished

Completed the game on any difficulty setting.

Speed Kills

Killed 5 enemies in 5 seconds in any game mode.

Quicker Than Diet And Exercise

Performed a dismemberment at every point on the enemies' bodies.

Complete Mogaung

Completed the Mogaung levels on the hardest difficulty setting.

Complete Al Qa’im

Completed the Al Qa’im level on the hardest difficulty setting.

Not Enough Milk

Performed 500 dismemberments throughout the campaign.

No Mercy

Killed 1000 enemies throughout the campaign.