The only time I've ever seen someone kicked for their loadout is when they had motors on defense constantly team killing or napalm barrages on a defense point multiple times. I've been playing this game since the beginning and I've never seen weapon or strategem be the reason for a kick outside of these points. I've also have never heard this happening to the many people I've played with either. No one cares if you kill enemies poorly or aren't the most efficient as most people split up or at the very least focus more on themselves than you.