After having thoroughly checked, it seems most non-Black Ops guns are better except the Magnum, the Auto-Sniper Rifle and regular Sniper Rifle and the Assault LMG (because there's no "civilian" equivalent).
I'll provide a bit of feedback: I started playing this since the previous version using the "Veteran" difficulty level, then switched to "Experienced" for the newest version. It felt too easy, so I edited the save to swap back to the 3rd level. Well, the difficulty surely ramps up. Granted, now I finally have thanks to Promotion 2 actually powerful stuff, but the sheer numbers that most maps have is staggering. The Gang Wars! event by the Red Dawn are the worst, as they're so many dudes the game has trouble tracking them all, for not to mention said "gang wars" work... Strangely.
So far, I saw a bunch of Hooligans and Gangers shooting each other in farm grounds, but more often than not I find a forest map in which the gangers are attacking unarmed civilians and a few hunters. Are they fighting against the local hunter committee? To make it worse, since the civvies act last, it is guaranteed the enemy will kill a fuckton of friendlies before you can act. My only solution so far is to slaughter as many of these Soviets-freaks until they surrender, but the loot provided is not worth having a few agents wounded or even killed, for not to mention the inevitable score loss.
Meanwhile, Dagon Attacks! is slightly better. There are tons of enemies here too, but at least it makes sense thematically.
Moreover, I was mistaken with the X-Psiclone. It is not explained clearly, but it seems you're meant to build a Psi-Lab before you can tinker with these devices. It feels as if there was more research lines missing here. Otherwise, how can X-Com "know" they can repurpose these devices if they cannot even use them?
Lastly, budget is perhaps the most fearsome enemy so far, producing Motion Scanners is not as profitable as it used to be, but that was to be expected. I'll see if I can last another in-game month, but at this rate I'll jump back to Experienced to see if things get more stable. I'm at November 97 right now.