Black dragon knight;27781 said:
well the computer in the main hall in RE2 you use a card key to unlock the doors. while in RE3 you use it to get the code for the locker which you the blue diamond from.
the locker the one you take the plastic explosive from in RE2 it doesn't ask you for a code. while in RE3 it asks you for one.
the locker in the room under the stairs the one where you get the other outfits for Leon and Claire. if you went there in RE3 you will get something else.
The computer needs Brad's card from his corpse or Jill's card from the room where you get the red jewel in RE2, i'm assuming most police officers had these cards, the card gives you a code on the computer, which, obviously i'd imagine that it wasn't designed to just open the doors.
The locker where you take the plastic explosive from has a blue jewel in RE3, it doesn't have a code, although I will admit that Jill doesn't need to use the lockpick wheras Claire does, and they've somehow relocated in the middle of a zombie apocalypse, like those damn puzzles, ohwellz.
If you go in there in RE3 you get gun powder if i remember correctly, but it doesn't show you what's inside, for all we know the suits could have been in there but Jill ignored them, and just went for the gun powder.
I know i'm trying to rationalise Resident Evil, which is never a good thing, but i'm just trying to make things a bit clearer. xD