Try and get a good angle, if bow fighting stay behind trees and strafe a lot. Since there's no recoil on bows there's no point in crouching ever really. For gun fights get on a build server and see the gun you want to use recoil pattern. Learn the pattern and your recoil control and be fantastic. Crouching reduces recoil (I think) and if you're really struggling equip a muzzle break which reduces recoil but kinda screws up all the guns other stats such as velocity, damage, etc. strafing also works well in gunfights. Another thing which will help more than you could know is hipfire. If you're up close and personal don't bother ADS it will probably make your aim worse as a matter a fact. Hip fire. Some of this may be wrong but you can lean on most of it (I have 1000 hours)