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.
Killed 10 enemies with the last round in your weapon
Defeated K-8 Nemesis Widowmaker
Single player challenge complete on normal
Single player challenge complete on easy
killed 10 enemies through cover
Broke down the enemy's door
Killed 5 enemies at once with a single Airstrike
10 surprise kills executed
Achieved all objectives in Asia
Medic Population Diminished
Killed 10 enemies using melee
Achieved all objectives in Africa
Achieved Sniper Distance Kill
Survived K-8 Nemesis Widowmaker encounter
OSB Airstrike upgraded
Scavenger Population Diminished
OSB Pulse Wave upgraded
Skillkill x25
Highest value intel collected following multiple skillkills
Skillkill x10
Killed 10 enemies with mines
Killed 10 enemies while health is low
OSB Explosive bullets upgraded
Killed 10 enemies from behind
Killed 10 enemies with explosives
OSB Adrenaline upgraded
Induction Completed
Killed 10 enemies with grenades
Killed 10 enemies with a headshot
Killed 3 enemies at once with a single grenade
Complete Single player campaign on hard
Kill 50 enemies in a co-op mode siege
Kill 100 enemies in a co-op mode siege
Survive the Militarised Compound siege
Survive the Pirate Bay siege
Survive the Mine siege
Survive the Street siege
Win a Deathmatch
Win a Team Deathmatch
Win 10 Deathmatches of any type
Score 1000 online kills