DirkGently said:
I got scrounger just a while ago. Sweet Three Dog do you get way more ammo. And it seems to really like giving you a lot of a rarer ammo too. The last few crates I've had with missiles in them have had nine in each of them.
In my opinion, Scrounger is the most useful perk in the game. Until I got it I was always running low on ammo and having to use guns I didn't really want to. Now I'm level 18, and I have at least 300 rounds for all of my guns.
Also, the most useful perk to have in combat is the commando perk. If your energy weapon skill is high enough and you have a plasma rifle plus the commando perk, you can 95% headshot enemies from anywhere. Almost makes the game too easy.