All I know is, they are probably going on the game, which I have no memory of either. I've been playing back through Doom 3, and as much as I enjoy it, that damn shotgun should NOT spread like that. You would have to do something crazy to your choke to make a pattern like that in such short distance. It annoys the hell out of me cause I try to use it like in classic doom (basically to kill everything but the cyberdemon and spider mastermind) and fail because only one slug hits something if I'm more then an inch away. lol
Yeah, the shotgun in D00M 3 is terrible...
Fortunately, there is a kickass MOD that improves all sorts of things in the game. It does not change anything drastically. It alters some of the weapon skins, almost all of the weapon sound effects, and makes the shotgun
not suck.
Google search Narcozas Doom 3 MOD or something to that effect.
As for the original DooM, I really don't see what's wrong with the shotgun. The shotgun by far is the most useful weapon besides the plasma rifle. You don't have to be ridiculously close to deal decent damage. Besides, it's not that hard to get in really close once you learn how to dodge attacks.
Anyways, for GE:S, the shotguns in GE007 have the same range; projectiles fly until they hit something. (Unless you shoot strait up into the air, in which they just disappear.)