I'd've used the black crow & 222 a lot more if they had armor-piercing. Without that, what's the point? You've got your primary weapon for normal mooks, only other thing you need is AP- katanas can work in a pinch, but only marginally useful in medium/heavy armor.
Why have two non-AP weapons?
Dual-wielding pistol/katana also seemed completely unusable, just a nerf of both weapons.
The CAW is full nerf-mode thanks to its 8-round clip, (on an auto-shottie?!?), and the betty boom...you need to really like the aesthetics of that gun to justify carrying it. Better to carry more primary ammo or just about any other secondary (BKs can at least be targeting-system'd).
If you want a shotgun, Depezador is the beefiest contender by a league. Dat ammo. Dat damage. Dat range. mmmmm
BOSCO is
very solid sure, but it just felt so,
so boring. The 'silencing' is pointless, and it isn't armor-piercing. I prefer the s6000 as a long-range primary, more fun to use with its enormous clips and full-auto capability, (woo targeting system!).
444 is notable since it is an armor-piercing sidearm. A must-have if you're expecting big enemies & aren't packing an AP primary.
Sulfatum is
so much fun on high-respawn maps. Mowing down waves of enemies with 3-quarters of your clip remaining, and targeting system gives it anti-sniper capability, (not great, but there).
With this & heavy armor, you don't need to avoid confrontation, ever.
My favorite (primary) firearm though has to be the hunting machine. Sure you have to carry like 8 clips, but it's just so satisfying vaporizing everything with 444-cal on a holo-sight rifle. Mmm, so satisfying. Super-gook? Blap Blap, double-headshot. Bigger Super-gook? Blap Blap Blap Blap. 3 little gooks rushing you? Blap Blap Blap, the red mist falls.
More damage & ammo than the TRK, less weight, and the lack of a scope can even be seen as a benefit.
I play on hardcore/normal spawn & limited reinforcements. AI is fast reaction-time, short sight & low hearing.
I enjoy actually feeling like a cyborg techno-mancer rather than a clumsy meat-sack, & heat-seeking AI needs those nerfs.
Also a many-buttoned & macro-capable mouse is a godsend. G600, (yeah yeah hardware-accelerated & the DPI is unnecesary, but BUTTONS), & muh thumb can reach all my powers. One in particular is Lshift+Lctrl- super-jumping on-demand.
Pro-tip!
When outfitting, click the ammo once and then click on however many slots you wanted that ammo in, (so much time saved!). RMB to remove items.
Here, I found this back when I started my second attempt.