I love this game to bits but lordy am I bad at it. I haven't really been a PC gamer before and I feel like a simple man having a fist fight with Superman in every encounter. I'm getting smashed. Any tips on how to not suck at m/kb FPS most welcome!
I do get spanked but I do go back for more, a sure sign the game doesn't suck (but I do).
Lower your sensitivity way below what you're normally comfortable browsing the desktop with and try to get used to it. Your desktop icons aren't strafing left and right when you're trying to click on them, lol.
That's the most general advice and you can start to work from there, but it's important to get a reasonable sensitivity right from the start and practice that, because changing your sens later will require you to completely retrain your muscle memory all over again.
You kind of want to go as low as your mouse pad and desk space will allow, it will feel like dragging your mouse through water at first, but eventually you will start getting used to it and it will really pay off in the long-term.
It sucks to have to get worse before you get better, but most people that have "gotten good" at FPS have gone through it.