Score at least 80,000 points in Team Survivors.

Kill 50 enemies with the M4

Kill five enemies in a row with headshots

Kill 10 enemies by aiming while hanging from a ledge

Find the Strange Relic

Kill 20 enemies melee-attacking from behind

Kill five enemies with a brutal combo

Finish the game in Normal Mode

Kill 30 enemies with the Dragon Sniper

Kill 30 enemies with the MP40

Kill 20 enemies with the Desert - 5

Kill 20 enemies with Mk-NDI grenades