Not having played Warzone, I'm not really sure what "omni-movement" is, but if I'm reading you right then you can sprint in any direction? Does this mean you can sprint backwards, or that the game automatically spins you 180 degrees and sprints you forward? Sprinting backwards doesn't really seem very plausible, and if it spins then it would depend on the speed of the spin. In all honesty it sounds very twitchy, and twitch is not something I value in a game. But I reserve judgement until you can explain more or I can try it for myself.