Fuck this gun, man. I hope this thing gets nerfed in some way. It's vile and is like 6th in terms of the fastest TTK but has the fun benefit of being an SMG with no aim cone so it's a laser beam. The only thing keeping it from being too obnoxious is that the 16 round starting mag filters most of the retards. The Tavor is the same way. It's got the lowest TTK in theory but is balanced by being really inaccurate so it filters most people.
It's actually trash when you first get it. I hate leveling it up with its 16 count mag, and its ridiculous bloom.
I'm almost convinced all guns can be laser beamified if you work with them long enough.
The m4 and SGX get really good really fast, but attachments can make or break everything. Some attachments apparently have no drawback, and some are clearly shit.
Red lasers can't be seen by the enemy? Ok so just use them.
Most vertical grips can ruin your walking accuracy? Never use them, because slight movement/counter-strafing can save your ass
Compensators and brakes can reveal your position on the map? Never use anything other than flash hider or suppressor. Those little attachment differences make a COD of difference.
I inherently play defensive and slowly and it's just never rewarded. I can count the times I've proned with a lmg and got 3 kills on one hand, going on many hours. You're more likely to get 2 lucky kills running around like a retard than to try to put any sense of tactics into your play.
I don't know if you guys are doing this, but you need to use the spatial audio, and play "positions" based on relative enemy movement, not just plant yourself. The goal should be to upset the enemy who runs by you and you gank them, not necessarily giving them a static target.
This is going to sound cringe, but there are real world considerations that actually help. I remember I read a combative about urban combat from the 80s or something, and their suggestion when peeking around corners was to prone at a 90 degree angle. Now if you peak from prone, its going to be really surprising to a console guy with a controller, and you'll have the upper hand.
Another simple thing is to check a corner with a peek and taking a mental snapshot before you actually turn it. Simple gunfighting tricks do in fact work in this game. Realizing you can't engage someone at a certain distance. Going the path not travelled so you can circle around. Playing aggressively instead of crumbling behind something. Retreating to a better position after suppressing. Lots of stuff works, its just that you have to lock into the game's pace.
Another thing is to just abandon hope for better gameplay from certain game modes.
I played Rush and TDM yesterday because I wanted to complete challenges. TDM is not running around and gunning, its actually slowly covering cones of fire as you amble from cover to cover, waiting for them to do the running around. Rush is just complete bullshit on the urban maps. You're basically playing 2 way firing range.
Stupid advice i know, but if you just play "serious" as opposed to casual, you'll improve. The game wants to be taken seriously, and thats when it opens up, when you play it the way it wants to be played.