Full list of all 41 Bodycount achievements worth 1,000 gamerscore. It takes around 15-20 hours to unlock all of the achievements on Xbox 360.
Defeated K-8 Nemesis Widowmaker
Single player challenge complete on hard
Single player challenge complete on normal
Single player challenge complete on easy
Won 10 Deathmatches of any type
Survived the Mine siege
Survived the Street siege
1000 online kills
Survived the Pirate Bay siege
Survived the Militarised Compound siege
Broke down the enemy's door
Achieved all objectives in Asia
Achieved all objectives in Africa
Survived K-8 Nemesis Widowmaker encounter
killed 10 enemies through cover
Medic Population Diminished
Achieved 100 co-op kills within a siege
Killed 5 enemies at once with a single Airstrike
Won a Team Deathmatch
Achieved 50 co-op kills within a siege
OSB Airstrike upgraded
Skillkill x25
OSB Pulse Wave upgraded
Achieved Sniper Distance Kill
Scavenger Population Diminished
Killed 10 enemies with mines
Killed 10 enemies with the last round in your weapon
10 surprise kills executed
Highest value intel collected following multiple skillkills
OSB Explosive bullets upgraded
OSB Adrenaline upgraded
Induction Completed
Killed 10 enemies from behind
Killed 10 enemies with a headshot
Skillkill x10
Killed 10 enemies with explosives
Killed 10 enemies while health is low
Killed 10 enemies with grenades
Killed 3 enemies at once with a single grenade
Killed 10 enemies using melee
Won a Deathmatch