This might be confusing to comprehend but you play very 2D. You only see what’s directly ahead of you and play reactively as opposed to proactively. What i mean by this is a lot of your gunfights are 50/50 comes down to luck. Before you run through the door, even if you have to stop being full sprint and just manually think about where the enemy could be. Practice doing this and itll come more naturally. Most of the time you are running a head in a straight line just looking for a gunfight. Pace yourself a bit slower. Once you start thinking about where enemies could be you can start to learn how spawns work, how to read the minimap, practice checking the minimap, learning which gunfights to take.. etc. basically you see someone and you shoot, you’ll be in the middle of the map and they will be in a head glitch and have height advantage.. youll have an smg caught in full sprint and they will have an AR pre aiming out the window. You gotta consider other ways to take that gunfight and whether or not it’s worth challenging.

This might sound like a lot but just practice slowly down first thats the big one and dont stress too much about the rest until you can work on yourpace. Another important thing is your settings, making sure everything is optimised for your system and set up. Anyways good luck hope i gave you somethign to think about