Why anyone would feel they have to cheat in this game is beyond me. I've played since day one of early access and I have seen a few things, hiding in the place the ball spawns in huttball and not being targetable is the most common one I have seen but it's the same player doing it on my server and they are so bad it's hilarious.
I've play in a rated team that gets accused of hacking though, I think it is very rare that people hack and most occasions it's just players making excuses for losing to better skilled and geared opponents, or they don't understand class buffs/mechanics.
Hear-hear! <bangs empty tankard on the table enthusiastically!>