It is very difficult to make a silent kill with a silenced weapon. (any)
I have just tested it again and again, and it is almost impossible to shoot someone without alerting other enemys in the area.
Even enemys 100m away where alerted sometimes. And mostly enemys within 50m where alerted even from a heashot where the exit bullet so to speak exit in a 90 degree angle away from the enemy soldiers.
The only way it was possible to make a silent kill where mostly shooting from 70-100m and 2 bullets in the back.
So gameplay where people example sneek inside a base and need to kill 1-2guards to place explosives are almost not possible, and will fail mostly.
( just like in arma 1-2 )
I belive it is important for players to be able to play a stealth mission.
And one of the most important things are to remain "hidden" and quiet.
I like to suggest that the game is "tweaked" so that 9mm sub machine guns/ammo and pistols are more stealthy.
Maybe add some ammunition that are more "quiet" than other, but have reduced range.
Basicly when people use a silencer they want to be able to make a quiet kill.
(10-03-2013, i did use the search function and did not find other simulare treads about silencers and kills )