Murcielago has submitted us his "Team Killer Lock System" tool for ArmA II.
The TKL system is a tiny solution that fix a big problem... team killers or people destroying vital gaming elements. TKL system is easy to use and in addition is an autonomous system, so it does not need a admin or votes.
TKL system punishes team killers by freezing their avatar (10sec, 90sec, 5min...) letting they know that they did something wrong but when they reach the maximum number of friendly kills their games will be locked automatically until the server restart or mission is changed.
Every 5min the list with all the game ID from team killers will be copied so everyone can has access to this information. This games ID can be introduced into the TKL system to ban automatically those users.
Now you do not need to waste your time to have any type of server protected from team killers.