Kill Poseidon

Completed all missions in the Arid Badlands

Rescued a groupmate from death in a co-op game

Discovered Crimson Lance Enclave

Killed the Rakk Hive

Found or purchased all 11 basic Plasmid types.

Saved every Little Sister and spared Grace, Stanley and Gil.

Completed your first trial in a non-private match.

Became a Big Daddy for the first time in a non-private match.

Took down your first Big Daddy in a non-private match.

Escaped Rapture.

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

Gained access to Lamb's stronghold.