Complete mission II.2 - Diversion.

Defeat 100 enemies on foot.

Defeat a Helghast soldier with a Spider Mine.

Defeat a Helghast soldier with a melee attack.

Defeat 50 enemies while you are in a vehicle.

Defeat a Helghast soldier with a Missile Launcher.

Complete mission I.3 - Evacuation.

Revive an incapacitated Buddy.

Collect $1000 Vektan in a mission.

Get two enemies of different species to fight each other in a single player game

Kill 30 Helghast soldiers in under a minute

Use the M224-A3 Heavy Support Weapon to melee 20 Helghast soldiers