@Madmole
You asked which perk descriptions were unclear. (probably since you wrote them

)
(To be clear i know the answers to all the questions i pose below, just by looking through the XML's and just by having played this game a lot. Obviously this doesn't apply to a new player. These question's are formulated from the perspective of a new player)
-DeadEye description mentions 'rifles'. What are rifles exactly? Just the Sniper rifle and Hunting rifle? Or the assault rifle as well (the AK)?
When you look at the Perception attribute it only specifically lists sniper rifles. This adds to the confusion.
-To make things worse, in the Penetrator perk you start talking about a marksman rifle. Is that the same as a sniperrifle? A higher tier one?
-Strength attribute and Pummel Pete: What counts as a clubs? Are baseball bats clubs?
-Hidden Strike: The Level 1 description mentions knives. The other ones don't. What weapon does this apply to? Melee only? The way it's written seems to imply melee.
If listing all the specific items in the perk descriptions gets too out of hand, you might even consider adding a small section to the description of items which lists the perks that affect that specific item/weapon/tool.