Gain entry into the facility

Find and turn on the transformer.

Escape the train attack without taking damage.

Enter the correct code into the command center computer.

Defend yourself against a mutant.

Obtain the shotgun unit.

Obtain the flamethrower unit.

Meet back up with your team at Building B.

Increase your batteries capacity.

Obtain the interceptor unit.

Obtain the delta auto sight.

Activate the detonator in Level 1 Reasearch Lab.

Obtain the night vision scope.

Obtain the zoom scope.

Activate the detonator in Level 2 Reasearch Lab.

Increase your batteries capacity to the maximum.

Obtain the grenade launcher unit.

Kill the swinging arm monstrosity.

Retrieve Gary's bomb and escape the wreckage of the plane.

Kill the mutated teammate.

Obtain the grenade launcher unit-AT6.

Break your way into the maximum security area.

Obtain all three parts of the ultimate launcher.

Obtain the maximum amount of ammo possible.

Kill origin on the hovercraft, ending the mission.

Complete the game in New Game+ mode with a harder diffiulty. (Load a completed save to start.)

Collect all dog tags.

Complete the mission in less than three hours.