Concentrated Fire seems OP as fuck. I'm using it with the Deliverer, which has improved V.A.T.S. hit chance and 25% less Action Point cost
the reduced AP cost lets me spam so many shots in VATS. i just aim at their head regardless of the hit chance and after a few shots i'm hitting each head shot
idk maybe this will become weaker later in the game but for now i can tear apart everything using 10mm ammo which is everywhere. if i do face something really tough i can just blow off a limb and make it easy.
also using Gunslinger with the Deliverer, which probably helps a bit too
The second I got that Deliverer I tried it out in a few fights and saw how many hits I could squeeze into a single round of VATS even with my abysmal agility and thought "this seems like a gun that you could totally build an entire character around." but since I'd been focused on rifles and sniping all game I just put it in my workbench to collect dust.
I think I might do a tuxedo sporting, James Bond type and just roll around with a silenced Deliverer on a future playthru for sure.
also, is gun nut worth investing in or will i run into an NPC that can do the same thing for me?
2 options. Basically get enough INT to get gun nut AND some science, because you need both for high end gun mods. OR skip INT/gun nut/science completely and just strip mods off of guns that you find. This is kind of a hassle because you need to actually find the guns that have the mods you want, but as long as you don't mind not having the best gun mods (and useful things like silencers) until the end of the game when they start showing up more frequently, it's a good way to save yourself 8 perk points.