before you start kicking people you really need to not only read the rules but understand them.
basically if someone is breaking a rule and they don't listen, kick them.
they come back and still decide to break rules, ban them.
if they've been banned before and are still breaking rules, don't kick just ban again.
increase ban lengths with each incident start at 5 minutes and work your way up to 7 days.
repeat 7 day bans are allowed for more severe punishment and you can always put in a request to have someone perm banned by ZERO.
also recording demo's always gives you solid evidence also when someone questions you.