Does nobody remember the Devs saying "No AP" specifically because it resulted in a 1-tap meta that completely dissolved the usage of 2 pieces of equipment, specifically because it was a must-have ammunition?
AP forced a speed meta specifically because armor was rendered useless. With standard ammunition, the TTK in INS:2 is pretty much about the same INS:S' TTK after the armor nerf and ammo buff, minus now having to deal with projectile travel.
The weapons have identity. Wanna wallbang and hit hard at all ranges? Take a high-cal battle rifle.
Want something easy to control, and go for headshots? Take carbine sporting a lighter caliber.
Want to guarantee shit dies in one shot in CQB? Take a shotty.
Tack on persistent HP, and even if YOU don't get the kill, you've set up a teammate to sneeze on your target and finish the job. The TTK is still blistering fast, even with heavy armor, and that armor doesn't protect from headshots.
If you're upset that someone beat you shot-for-shot because he spent his points a little differently, learn to flank, use flashbangs, or "git gud".
The only thing I absolutely agree with is that it is too hard to hit max weight. Until players can routinely hit a point on most specialized classes where they can't take everything they want without hitting turtle speeds, We'll have an issue. But when it comes to objective based games not having good options for anchoring creates rough metas where the only viable ways to play involve trapping and roaming.
Trust me when I say that NOBODY wants the gameplay the devolve into who can plant C4 on the objective first and wait to see enemy presence.