2x 1.6 Micspam:
Spamming the microphone is unacceptable in any format, whether it be screaming, singing, repeating yourself or playing music unless another rule states otherwise. However repeatedly saying a player's in-game name calling KOS, saying who you are with etc. is not microphone spamming because it is helping other players inside the game.

2x 2.1 Random Death Match:
Players are not allowed to kill others without a justifiable reason. Random Death Match or RDM is the act of killing without a justifiable/valid reason and is punishable. It is required to ask a player who killed an innocent why they did so, unless you can be certain that they did not have a valid reason. Without a justifiable, or believable reason they can be killed. Read rules 2.6 and 2.7 for more information on when killing people is acceptable.