This mean fella will drop an Uncharged Power Cell, so keep an eye on the ground and pick it up when you can. Then, kill a Mimic and pick up the Barrel Assembly from the ground. The intel will be in a different locker each time, so go around and investigate all of them. You’ll want to go around the tall lockers in the two barracks.Pick up the locker key and go to the Barracks. The screen says ‘Prove You Are Me’, and it’ll drop the Locker Key. Bring the eye all the way back to the Weapons Lab and interact with the retina scanner.Interact with Dimitri Kuhlklay’s corpse to gauge out the poor guy’s eye. Look for the burning tanks, and look at the one on the far right with a corpse leaning against it. The easiest route here is through the Open Lot (the left side gate from the teleporter), up the stairs to mission control, and out the right side door. Now you want to head to Scorched Defense.The lab is straight ahead, and the blueprints are on the wall by the far door. Turn on the Firebase Z power and go through the right hand gate from the teleporter. Go to the Weapons Lab and pick up the Blueprints.We haven’t been able to 100% complete the Ray Rifle because at time of writing, the Firebase Z easter egg is not yet active (it’ll be good to go at 9am PST/12pm EST/5pm GMT), but here are all the steps to build the Ray Rifle in Firebase Z: K-84, you’ll need to go through a few steps and collect the correct components.

Call of duty ray gun