Get 250 Headshots.

Reunite with your Space Marine brothers.

Kill 25 Ork Nobs.

Kill 500 enemies using Melee weapons.

Get 100 Headshots.

Use Build & Battle for the first time in the campaign.

Jump from Totec's shield while he is jumping

Play Score Attack Mode

Win a round by knocking your opponent out of the ring in Arcade Mode (any difficulty level)

Play each class in Multiplayer.

Multi-kill -- 5 enemies with 1 Frag grenade.

Reach the top rank for multiplayer experience.