Take down all Scrotus camps

Send a Destroyer on a Vendetta Mission.

Unlock assault perk 3

Own 100 different pieces of clothing.

Resuscitate your partner 10 times in Cooperative mode

After running out of filters in a hazard zone, craft a new one while suffocating.

Defeated the outpost leader and recovered the tags from 4 Rebel Outposts.

Purchase an item from the Black and White Dye Merchants.

Complete a main campaign mission with rifle kills only

Eat a meal of maggots

Recruit an Orc after he's killed you three or more times.

Unlock assault perk 4

Prank a co-op partner.