Complete 5 quests in a single co-op game with the same 3 partners

Save 15 survivors from Rais's men

Kill 100 enemies by kicking them off the rooftops/cliffs.

Throw 50 enemies with Grapple

Blind 25 enemies in the Light Trap

Blind 25 Volatiles with flares or a flashlight

Activate the Amplifier

Kill 50 enemies with throwing weapons

Stick a burning zombie on spikes

Add a fire elemental effect to a sword or a khopesh

Kill 25 enemies using Ground Pound or Drop Attack

Catch 5 Bolters