In the dead space games, Isaac (and Carver) have access to some pretty badass suits that are incredibly technologically advanced. But other than the marines of the Vallor (who wore the military suit), no one but the player characters ever wear these suits. Not even the Sprawl security officers in DS2's campaign wore the security suit, which seemed to be made for them. It just doesn't make any sense. I mean, if Isaac can get a suit as a MENTAL PATIENT in DS2, they must be pretty available.