Does anyone know why silent weapons still alert nearby enemies?

Well that's realistic because a weapon is never truly silent.
Well it's not a silenced pistol. Weapons don't have silencers, they have suppressors.
The sound is suppressed not silenced.

) weapons, others I am not.Well it's not a silenced pistol. Weapons don't have silencers, they have suppressors.
The sound is suppressed not silenced.
Is this game worth sticking with? Played about 45mins but it's not drawing me in at all.
Bought this and dying light, tried this first got bored and moved on to dying light which is fantastic. Though nearly finished now so either going to trade them both in and get something else or stick with far cry.
