Kill 10 enemies with headshots in any mode

Kill 20 enemies in any mode

Make 2000 headshot kills in any mode

Kill 2 enemies in a row 20 times

Get 10 kill assists

Kill 3 enemies in a row 1000 times

Get 4000 kill assists

Kill with a grenade 10 times

Finish battle in first place 5 times

Achieve first blood 10 times

Finish battle in first place 2000 times

Complete a battle 5 times

Kill with an assault rifle 100 times

Activate any killstreak 10 times

Kill with a knife 7000 times