Kill an enemy who is leading the hostages without injuring the hostages

Kill an enemy while they are reloading

Kill an enemy with the last bullet in your magazine (excluding sniper rifles and Zeus x27)

Completed the mission "Shoot This Guy in the Face"

Reached level 25

Killed 100 enemies with the Sabre turret

Completed the mission "Rising Action"

Killed a flying enemy with a thrown Tediore weapon

Completed the mission "A Dam Fine Rescue"

Purchased 5 items from the black market

Completed the mission "Hunting The Firehawk"

Completed the mission "Plan B"

Completed the mission "Best Minion Ever"