Achieve 100% Synchronization in any Sequence other than Sequence 1.

Find a secure place to hide and re-enter the Animus.

Attempt to access DNA Sequence 9 for the first time.

Defeat 30 enemies with Mk-NDI grenades

Find 20 treasures

Defeat 20 enemies with hand-to-hand combat

Defeat ten enemies in a row with hand-to-hand combat

Kill one of each enemy infantry type with a melee attack

Destroy any Helghast APC during battle

Take 30 Helghast lives whilst using the ISA tank

Destroy all Leech Pods in The Cruiser

Kill 2 Helghast at once and take your own life using a single frag grenade

Kill 500 Helghast Soldiers