Voted no, annoying people (read trolls) could use the friendly fire to kill you just for the 'fun' of it.
It honestly happens less than you would think apart from stuff like base cap knife fight celebrations, or the planetside 1 victory orbital strike. From planetside 1 and 2 I didn't really have problems with trolls after a couple hundred hours of play time. Every now and then an idiot walks in front of a scattercannon and they get turned into a fine mist but that's just war for ya.
There is vary little that FF adds to game play, and a lot more that it takes away. FF with melee , sweeping(AoE) melee weapons will be a major issue with FF. "Adding realism" is a falsehood considering that in 40K melee is a lot more common (and expected) than any modern combat has. Punishing an entire category of gameplay (melee) is just another reason FF is just bad for gameplay. I can't think of a good reason for FF, but there are many reasons not to have it.
well not everyone reads 100 pages just for gigles...and its his opinion he is entitled to that you know...
Opinions are as valuable as the reason and research behind them. Bringing up a topic that has been discussed ad nauseam (in the exact same thread) as though it had never been discussed at all is very silly and worth calling out.
Some more valuable than others based on the amount of thought and research behind them. That point aside griefers are inevitable. People WILL come online and shoot teammates just be dickholes. I don't know why, but it happens. The thing is that it doesn't happen often. There are not tides of people going around being dickholes, it's 1-3 people at a time trying to impress one another or something along those lines. It's not the main concern and I don't think it's even worth factoring into the FF debate because it's unavoidable. "If there's anything the history of gaming has taught us it's that asshats will not be contained. They break free and they crash through contingency plans and find ways to kill their faction, annoyingly maybe even creatively, but, uh, there it is. Griefers, uh, find a way"