T - This is just behind, on a ledge, the second data post.

U - This is just below the 2nd data post on the opposite side you came from.

N - This is on a small ledge to the west of the first Turret.

H - This is on the ground just to the left under the second bridge.

D - This is behind some boxes and stuff right as you enter the building.

E - After you go through the first door with the VS it will be on the ceiling
just above the where the door was.

R - This is floating in the air in the last hallway before the boss.