Silent Death

Perk Silent Death
Requirements	Level 15, Sneak 175
Ranks	1

While sneaking, if you attack a critter from behind, you will always cause a critical hit with a +10 bonus on the roll. Silent Death is that kind of perk.

Note: Silent Death does not affect grenades and only works for players that are either unarmed or equipped with a one-handed weapon set to single-shot mode.