The edited version of this film has two major differences: when Revok kills the scanner at ConSec he dies of a heart attack instead of his head exploding; and the final confrontation between Revok and Vale is also cut down to nothing, with an animated mind transfer scene over a freeze frame instead.
The R4 release is uncut, with these scenes fully intact in all their bloodsoaked glory, including Vale’s eyes exploding and his face ripping away.