Win a game as an assault character

Respawn a teammate

Reach Commander (Level 55) in Multiplayer while playing online

Become the Kill Leader

In Blackout, unlock Battery, Ruin, Firebreak, Seraph, Nomad, Prophet, Ajax, Crash, Torque and Recon

Kill Urzael.

Recruit the Templar, Scoundrel, and Enchantress.

Kill Diablo.

Accumulate 2,000 yds of drift in a single event using the Subaru Impreza WRX STI

Fill the Nitrous bar then use it all in one go without hitting anything

Kill Azmodan.

Kill Ghom.