and stealing the CP of the teammate they just killed should get them kicked too.
CP theft yes i 100% agree with that, although how can you tell theft from sharing? Or saving it from the other team? Equipment kills, meh! Maybe under the repeat offender scheme yes, but having your claymore blown up doesn't set your Scorestreak back does it so not really the same thing. Annoying, hell yes but not kickable really is it
I consider it CP theft if you run up and shoot me just to get the CP I called in. If I die due to an enemy bullet by all means take my CP before the other team does.
Don't believe its punishable but if your team killing just because you think its funny then I'm sure someone will report you for cheating. If you go around in game just pissing people off just because you can then people are gonna get back at you any way they can and if you get enough reports don't be surprised if you get banned.
if you teamkill you can get kicked and end up with probation.
if your host you wont be kicked but be put on time out.