FF would be okay with the appropriate penalties for any damage inflicted to friendlies. World of Tanks has an excellent system to emulate for this, as like in Dust, when you die in WoT it costs you credits. The bottom line is that retards like the above, who dream of TK'ing people because they think they are the ones who decide how other players play the game, need to be appropriately punished for their stupidity. Fines taken from their wallet and given to the people they kill, designation as a team killer and made an open target for anyone on any team to kill and get credit for, and finally, temporary and eventually permanent banning from the game.

Friendly fire is nice because it adds a bit more depth to the tactics to be employed. Friendly fire is bad when people use it to maliciously kill their team mates. So to achieve the former without the latter, sufficient punishment needs to go along with egregious TK'ing. If that's done, I think FF would be a valuable addition to the game. If it isn't, then morons like the above will ruin Dust as teams end up more concerned with killing each other than with killing the enemy team.