[Suzerain of Sheol]

He could definitely get something like that. I can just picture some overblown psychic getting totally blindsided as Dante grabs him by the throat and all the sudden his powers are totally shut off (and any high tech gear he happens to be wearing). Now you just need some kind of cloaking to block precog so he can get close enough to do that. :P (bonus points if it's actually a cloak)

And basically, said lens would interface with the psychic patterns of the brain to allow one to "aim" without using their eyes, bestowing more or less perfect accuracy (range dependent on psychic ability obviously), including stuff like shooting from behind cover, at all angles front/back/up/down with nearly instant reflexes, or even whilst ridiculous battlefield acrobatics if one were so inclined. :P

As a balancing factor, I think their guns would need to have some kind of special psychic receiver to function properly with it, the kind of thing that if it gets damaged and there isn't an artificer nearby....