You're using a PC...game is not set up for a PC. In fact, game is anti-optimized for PC to give console players an advantage....aim assist, low bloom, low/no recoil, netcode advantages, etc.
I'm really sorry you're struggling. I truly am. However, please know that EA/Dice doesn't seem to care. They appear to be catering to consoles and appear to not care about any cheats that consoles might be using (ie; Chronus being the most well-known option...there are others out there though...XIM Apex, GIMX, etc. being some of the other popular options).
Anyway, as a MNK player, you're at a disadvantage and must compensate for the extra stuff that controller players receive. You have to be quicker....more precise...and somewhat luckier than a controller/console player. Also, you better have a fresh clip and "hope" you get the drop on them....otherwise, you're dead...DED.
