Complete the indicated tasks to unlock the corresponding rank or award in Single 
Player mode:

Ballistics Expert: Complete a level using only the rocket launcher. 
Blaster Master: Complete a level using only the blaster. 
Blazing Buckshot: Complete a level using only the shotgun. 
Corporal (Act 1 ): Complete Act 1 with the rank of Corporal. 
Corporal (Act 2 ): Complete Acts 1 and 2 with the rank of Corporal. 
Corporal (Defeated The Strogg ): Complete the game with the rank of Corporal. 
Enlightening: Complete a level using only the lightning gun. 
Full Arsenal: Complete a level where a shot with every weapon hits. 
Galactic Order of Heroism: Fight alongside Raven Squad. 
General (Act 1 ): Complete Act 1 with the rank of General. 
General (Act 2 ): Complete Acts 1 and 2 with the rank of General. 
General (Defeated The Strogg ): Complete the game with the rank of General. 
Hyperactive: Complete a level using only the hyperblaster. 
Lieutenant (Act 1 ): Complete Act 1 with the rank of Lieutenant. 
Lieutenant (Act 2 ): Complete Acts 1 and 2 with the rank of Lieutenant. 
Lieutenant (Defeated The Strogg ): Complete Acts 1 and 2 with the rank of 
Lieutenant. 
Pineapple King: Complete a level using only the grenade launcher. 
Private (Act 1 ): Complete Act 1 with the rank of Private. 
Private (Act 2 ): Complete Acts 1 and 2 with the rank of Private. 
Private (Defeated the Strogg ): Complete the game with the rank of Private. 
Solar Star of Courage: Fight alongside Viper Squad (Hangar2). 
Sky Marshall's Medal of Valor: Rescuing Pvt. Lanier of Eagle Squad (Waste). 
The Machine: Complete a level using only the machine gun. 
Tooth and Nail: Complete a level using only the nailgun. 
The Dark Lord: Complete a level using only the DMG. 
The Sniper: Complete a level using only the railgun. 
Untouchable: Complete a level without taking damage.