Get a triple kill with an explosive during a single Ranked Match - Team Deathmatch.
Accumulate 30 kills with a silencer over Xbox LIVE.
Get 20 kills with a shotgun in a single Ranked Match - Capture The Flag.
Disarm 15 bombs in Demolition mode.
Achieve a 25% vital zone hit ratio in a multiplayer match.
Achieve 10 kills from a distance greater than 100 feet without a scope in any multiplayer mode.
Achieve 15 kills with a sniper rifle in a single Ranked Match - Deathmatch.
Achieve 5 headshots in a row without dying using a sniper rifle in a multiplayer match.
Kill the bomb carrier with an assault rifle 5 times in a single Ranked Match - Demolition.
Achieve 5 kills in a row without dying with an SMG in a single Ranked Match - Elimination.
Kill 10 opponents with a machine gun during a single Ranked Match - Team Elimination.
Achieve 50 kills using pistols in any multiplayer mode.
Shoot off all 4 limbs on any combination of players over the course of a multiplayer match.
Kill 50 opponents in Ranked Matches with a knife attack from behind.
Accumulate 250 dismemberments in any multiplayer mode.
Accumulate 100 headshots over Xbox LIVE in any mode.
Kill 30 enemy flag carriers in Capture The Flag.
Kill 75 enemies by shooting them in the groin in any multiplayer mode.
Host and complete 100 multiplayer matches.
Kill 4 members of the opposing team while carrying their flag.
Have a 1 to 5 or worse Kill to Death ratio in a multiplayer match.
Have a 5 to 1 or better Kill to Death ratio in a multiplayer match (minimum of 20 kills).
Accumulate 50 suicides over Xbox LIVE in any mode.
Be the most skillful player in a Ranked Match.
Complete the Al Qa'im level on the hardest difficulty setting.
Complete the Mogaung levels on the hardest difficulty setting.
Complete the Eshkashem levels on the hardest difficulty setting.
Complete the Llebo levels on the hardest difficulty setting.
Complete the Donetsk levels on the hardest difficulty setting.
Complete the game without dying on Normal or Hard difficulty.
Complete the game on any difficulty setting.
Complete the game on the hardest difficulty setting.
Kill 1000 enemies throughout the campaign.
Perform 500 dismemberments throughout the campaign.
Kill 5 enemies in 5 seconds in any game mode.
Perform a dismemberment at every point on the enemies' bodies.
Accumulate 100 kills with the knife over Xbox LIVE in any mode.
Kill 10 enemies while crouching in any multiplayer mode.
Finish a multiplayer match with 100% accuracy (Minimum of 10 kills).
Perform 300 reloads in any multiplayer mode.
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