Acquire a blood gem that imbues hunter weapons with special strength.

Complete the game (any difficulty)

Kill 100 enemies with a headshot

Kill 7 enemies with silent takedowns

Kill 15 enemies with melee attacks

Kill 40 enemies with science weapons

Detonate 10 powder kegs

Mission accomplished.

Defeat an old adversary.

Deliver most of the Galaxy at War assets to the final conflict.

Survive the swarm.

Call down an orbital strike.

Kill 100 enemies with melee attacks.