One gripe so far is that three characters are using milspec gear while one is using civvie gear. Anyone can get an AR15 but a full blown LMG, a burst capable SMG and a combat Shotgun? Those are rare beasts. Since Clara only does single shot normally maybe give her a high caliber rifle? It also would make more sense given her gun is listed as a "High damage, high accuracy" weapon. You have the Barret which is a favorite of anyone who likes cannons, the Dragunov which fits right in with the graphic style since anime girls always seem to use that one, the M110 which is semi automatic in case you were worried about the three shot move not making sense, the well known M24 and the little known TAC 50.
Also odd that the AR15 is the only named gun. LMG, SMG, Shotgun, AR15. Seems odd. Obviously the SMG is an MP5. The most overused SMG in media showing up in every single FPS game in existence because even cops have them which happens to be the origin of the SMG. The LMG could easily be a M249 but if you don't want it to be a commonly used/known/hyped military piece you can always opt for a XM250, RPD, M16 LSW, HK 21 or 23, or M2. For shotguns you can literally use anything as there are so many variants for almost every one of them. I'd suggest the Mossberg 590 since it's a standard 6 round 12 gauge. You don't even have to worry about explaining gun maintenance because you can make gun parts at the work benches which hints that these people know enough about their guns to make new parts as they need to so you can go hog wild on the specific names.
Second gripe is that stealth kills grant no loot or exp. It's more lucrative to fight them.
Really enjoyed this one though.