How about a server option or mod, where someone on your team is a spy. The spy's job is to kill team mates (Legal TK) but only with a knife. The spy can also deactivate mines/C4 etc. The server randomly picks who the spy will be; an option you can choose to be a spy or maybe a new unlock. Once the spy is killed the server picks someone else. The other team does not know who their spy is, so if they kill the spy they get zero points for the kill; a legal TK. A spy would change the whole dynamic of teamwork... any additions to the this idea are welcome.
[OC]ioBuddha
[OC]ioBuddha