Heh, here is my 5 cents, Number 6.
When I started to play (it was on January or February) I played with my bro on some lonely server (just to get the feeling from the game). And then some tough guy connected to us (may be it was Ugly, but I'm not sure). And we started to lose. I mean the score was about 15:8:7. So, I decided not to shoot my bro. Seems bro decided the same. And after few minutes of play I said to tough guy:
"Hey! It's like you are hero and we are two bandits". He said "Indeed. But really bad hero
". So, he actually get the idea.
And he won this time. And he wasn't angry on us 'cos he said "thx for game" as well as we said the same. Ah, too bad I can't recall his name now.
But other times we play with bro against each other 'cos it really helps us to increase our skills (in DM I mean). But if one day I'll decide to play TDM in DM - be sure I'll let you know it through in-game chat. And you're always free to ask.
I think if everybody is awared of union in DM and no one have anything against - it's ok. If there is fun - let it be.
But actually in my opinion you can't kick players for that reason. And I'll explain why. In DM your goal to kill any player you meet. Because that's the way you score frag. If you decide for any reason not to kill someone - that your lost frag. Yeah, game will be much complicated in the case when everyone against you. But you'll learn much more in this case. Get skilled.
Still that's just my opinion and advise (from high of two months playing
).
See you on the field
"You should know that the lies won't hide your flaws/No sense in hiding all of yours/You gave up on your dreams along the way" (c) "Fake it" by Seether
P.S. English isn't my native language.