Infinite's Forge Custom Weapons

I’ve been wondering how quickly certain weapon combos and stats may become standard as part of custom games. For example, think the plasma pistol with emp effect will become standard amongst the social crowd? What other weapons, vehicles and ideas do you think may become standard practice? I’m sort of thinking Plasma pistol emp, covenant coloured vehicles, and if possible, lock on rocket launcher, magnum styled sidekick, m90 style bulldog and maybe even a “Spartan laser” sentinel beam.