Friendly fire glitch

[Kit Fisto]

So I recently turned on friendly fire to make the game a little more challenging but not turnin it on hard. Something wierd happens all the time, a team member can't kill me? I can kill them they can kill each other but they can't kill me!!! With ff on I'm not supposed to survive grenades or vehicle blasts of any kind, but I do!!! Is this a glitch or part of the game? ( I had ff off for like 11 months )

[21 | Reacter]

U mean the Bots cant kill u?

Thats not a bug, u can see that in Death Match mod, too, ur mates can kill each other, and they shot on u, but u cant die by them, here is a DeathMatch mod by me

http://www.mediafire.com/?udjc9b6b7z46sma

[Led]

AI can't kill you on purpose.  There are designed that way.

[Kit Fisto]

Oh ok! I didn't know that was how the game was made!