Kill Walker.

Finish FRIENDLY FIRE.

Destroy a Farmer drone.

Eliminate 5 opponents with DMRs.

Destroy 50 enemy drones.

Kill 10000 monsters

Find 40 Blueprints and then buy 5 Weapons on Demand at Maria's.

Kill 2 enemies with a single rocket.

With friends like this who needs enemies?

Kill a Breacher, a Rocket Gunner and a Sniper with CQC while in stealth.

Kill 50 Wolves.

Enter Director Mode for the first time as an unlocked actor.