Sorry, no gamecube keycodes here. It would be greatly appreciated, and a first, if you collect them as you play through the game and then post them here.

Do that and I'll put them in the first post with credit given to you!

UPDATE: Fingerprints

Enrica(5), Jamie(3), Moss(2)

(added to the first post also, see italicized text)

Enrica Villablanca: Microscope, cabinet or door in the infirmary office, on the door to her quarters, on the light switch in her quarters, on top of the cabinet drawers in her quarters, on the glass desk in her quarters, on her bedside table, on the toilet paper roll and sink in her bathroom, keypad outside her lab.

Jamie Washington: (HQ3/4) The refrigerator or microwave in the kitchen, on the locker cabinet above the stairs to the furnace room, on the leftmost equipment rack to your left after first entering the restricted zone, Jamie and Dayton's quarters (on the glass desk straight ahead as you enter the room [not the one on the left], on the locker door, in front of the microwave and on the cabinet next to his bed). (HQ4) After shooting Jamie (instead of Lambert) on the wall to his right (your left). Believe it or not, you can't find them on "The Final Showdown" (the last part of mission 10, HQ 4) around his office, seems dumb.

Carson Moss: Around the training course door switch, the retinal scanner of the interrogation room, in the shooting range next to the rifle on the right, the light switch in the furnace room, on the right side sink in the restricted zone bathroom (b4 the bedrooms), on top of the file cabinet in his personal room (b4 the upstairs armory), on the door of the surveillance room, on top of the cabinet in his office(inside the surveillance room).

Thanks to Stealthy_U for:
1. Enrica's on the door to her quarters, on the light switch in her quarters, on the glass desk in her quarters, on her bedside table, and on the sink in her bathroom.
2. Jamie's locker cabinet above the stairs to the furnace room, microwave in the kitchen and on the equipment when in the restricted zone.
3. Moss' in the shooting range next to the rifle on the right, on the right side sink in the restricted zone bathroom (b4 the bedrooms).

LOL, will this never end? Jamie seems to be everywhere!

UPDATE:

Jamie Washington: (HQ3/4) The refrigerator or microwave in the kitchen, on the locker cabinet above the stairs to the furnace room, on the driver side storage compartment (lower left side of compartment) of the white truck in the garage, on the leftmost equipment rack to your left after first entering the restricted zone, Jamie and Dayton's quarters (on the glass desk straight ahead as you enter the room [not the one on the left], on the locker door, in front of the microwave and on the cabinet next to his bed). (HQ4) After shooting Jamie (instead of Lambert) on the wall to his right (your left).

Thanks to wooker for Jamie's fingerprints on the driver side storage compartment (lower left side of compartment) of the white truck in the garage. (xbox forums)