Game deffo getting harder in 20s.
Stats ramp up a lot between each level so having a weapon thats even only a few levels down will feel so weak now, I have not found a new M6 type LMG for a while e.g.
The effect is enemies are like damage sponges now, I have to empty an entire round just to take care of a single rusher e.g. I was doing pretty much nothing to an elite boss until I found a box of incediary rounds which thankfully took care of him.
Then you have the flame grenades which go through walls and have massive burn range (wtf?) and they definitely need to do something about those elites that can throw a grenade every second.
Enemies also now pretty much never just stay in cover in front of you anymore, they either just charge or do coordinated flanks all the time.
So staying in cover is pretty much a no go now unless you happy to be shot at from 3 sides whilst burning to death from a grenade, which is interesting as its claimed that division 2 was made to encourage you to stay in cover.
first tip, always aim for the head unless your against a heavy with easy to hit weakpoints.. headshots do a lot more damage than body shots
secondly use the turret to defend if you dont have much cover, or if theyre flanking
as for the big tanky elites, aside from the melee ones they all have weakpoints.. with the minigun guy he has a red box behind his left shoulder, also the bullets coming from his ammo pound into the minigun can be shot, forcing him to crouch down and reload.. this can be done multiple times making him pretty easy
the grenade launcher guy has a weakpoint on his back, so throw a turret behind him to make him turn and shoot that
also staying in cover is vital, you just need to pick better cover so your not exposed from the other sides too much, or pick a spot they cannot flank you from