Seriously, it's not fun spawning in line of sight of 3 guys on assault, or having a guy spawn right behind you and kill you the second the game start on instant action or team instant action.
Cheaters rampaging all over the place. Encountering more than 11 cheaters in just a few hours is not fun and feels like server admins are left to solve it all.
Tons of host/server connectivity issues and when you get a disconnect instead of manually leaving then usually your experience gained is lost. Never had any problems with that before in any other game and it was usually like 5 dcs in a month not 5 per day.
Multiple occasions of having your experience being lost and having to be regained, same goes with unlocking nanosuit modules, weapons, attachments and accomplishments. By now I've gotten cloak addict achievement 4 times and the ledge grab one twice.
No discernible switch team button nor any auto team balance. Feels lame that you have to rejoin the server just to even it out a bit.
Every now and then you also become unable to fire your weapon, meele and reload so you have to change weapon a few times just to fix it.
Sometimes numbers don't update when you reload your weapon so you still have like 13 bullets showing when there should be 40.
On pro game mode, the red out of ammo message keeps flashing until you leave/rejoin session if you died when you're out of ammo.
The party system putting you and your mate in different teams frequently making it semi-pointless to use.
I play on PC and have had some people tell me it's console port.... Maybe that's why.