Kill 25 enemies while using the Coop Link Gun

Find the source of the hostiles and destroy it

Equip a bot with only max level parts

Kill 25 nanite enemies that emerge when you kill larger organisms

Destroy the last brick with a fresh Shard Storm.

Eliminate 50 online opponents.

Eliminate 18 opponents in a single player Eliminator event.

Finished the game on the hardest difficulty level.

Wrest control of The Thinker from Reed Wahl

Resolve all the Little Sisters in Minerva's Den

Kill a Lancer Big Daddy

Headed to the surface on the side of Sinclair's escape pod.

Reunited with your original Little Sister.