Kill 500 enemies using Ranged weapons.

Retrieve the Power Source.

Get 100 Headshots.

Make it to the party as Mash.

Multi-kill -- 2 enemies with 1 Stalker-Pattern bolter shot.

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

Kill 100 enemies.

Complete 25% of Campaign Mode

Complete a level within one minute

See what these humans are made of.

Visited the place where clues to the future lie waiting to be discovered.

Defeated a powerful enemy with graceful poise.