Well, I can’t claim it for myself alone, that’s an Anteater Squad victory, not just me. As anyone else will tell you, I’m not actually that good individually, my strength is the team.
Still, here’s everything I know, though I’m not great at all of it:
Get to estimating ranges. While things are quiet, occasionally sight up on something you can see on the map, like a building, and have a guess at the range. Then count it off in map squares on the map, see how close you get - each small square is 100m. Seems useless for a close-in fight, but working on your ranging helps you pick when you kick off, and when you don’t. Also helpful in team games!
Anticipate your targets - started shooting at someone in the open? They’re going to run for cover. what’s his nearest cover? He’s heading that way. If you know where they’re going, it’s easier to track their path.
Body position - Standing is wobbly, crouching is better, laying down is best. the better you can deal with recoil, the better your follow-up shots will be.
If you’ve got your sights up, remember you can hold right-mouse to zoom and steady a little further. If you have time to set up your first shot, remember you can hold shift to hold your breath, to steady even further. But not too long, if the little lung icon runs out, you get wobbly. You also can’t sprint for a short few seconds after you hold your breath, so keep that in mind.
Auto fire is for room-broom work. Keep it on single, or if you’re confident with your ability to tap-fire, only tap fire. Better to fire less and hit more, than fire more and hit less. If you can, get a rhythm - I tend to fire three times, pause for a tiny moment, and then fire another three.
Don’t shoot your teammates. They keep telling me this is very important.
At that kind of short-to-mid range, don’t worry too much about leading, unless they’re running dead perpendicular to you.
Don’t be afraid to mess with your sensitivities - PUBG breaks down sensitivity for a bunch of different weapon categories. Fiddle until it feels right. If you’re tensing up, pull it down some.
Never point your gun at a wall and strafe. Nobody is coming through the wall to get you. Only ever be pointing your crosshair where an enemy might appear - so, say you’re coming up on a left-hand corner, keep the corner of the wall just on the left of the crosshair.
Cover blocks bullets. Concealment blocks eyeballs. Prefer the first, but take whatever you can get in the moment.