Problem with bullet lead is it was undefined and there was no measurement system, and lag is going to effect it exactly the same way on Halo 5 on Xbox One with the dedi's, just no one will have the 'host' advantage. People are still going to have 'better connection' advantage with dedi's. Non hit scan is going to be almost just as sketchy in Halo 5.
Non hit scan should be left to projectile shot weapons like plasma pistols and rifles, and rockets and cannon weapons and whatever I left out I dont feel like thinking of all of them atm.