Start the Single Player Campaign on any difficulty.

Kill 10 enemies with grenades

Kill 10 enemies with a headshot

Upgrade OSB Adrenaline

Use an active ability 5 times in a public multiplayer match.

Complete the Campaign.

Activate Optimus' Shoulder Rocket ability 5 times without dying in Chapter VII.

Complete Chapter V on any difficulty.

Complete Chapter III on any difficulty.

Kill 20 enemies with Ironhide's Melee attack in Chapter II.

Destroy 30 enemies while in vehicle form in Campaign.

Kill 250 aliens