Let's set expectations before anything else: a jump shot is not something you should be leaning on to win fights. Standing still and shooting is almost always more accurate than shooting in the air, so most of the time a jump shot is a worse option than just holding your angle. What it is good for is looking incredible on clip. Landing a headshot on someone mid-air is one of the most satisfying kills you can get in this game, and that alone is reason enough to learn it properly. Just treat it as an occasional trick, not something to build your gunfights around.
Raising Your Gun Out of a Sprint Jump
A sprint jump (holding W and Shift into Space) builds speed fast, but your gun stays pointed down at the floor the whole time. The fix is a second, regular jump the instant you touch down. That second jump breaks you out of the sprint animation and brings your gun back up ready to fire. You always jump in whatever direction you were already sprinting, there's no separate "jump shot direction" to think about.
Firing at the Peak
Shooting while airborne hurts your accuracy, so don't try to spray a full mag. Line up a single shot or the shortest burst you can manage, and take it right at the peak of the jump, the moment you stop rising and are about to start falling.
Landing Somewhere They Aren't Aiming
An enemy watching you jump shot to the right is going to track their crosshair to the right, expecting you to keep going that way once you land. So don't. The instant you touch down, reverse direction back toward wherever you jumped from instead of continuing on. That single habit is what actually buys you the follow-up shot, since their aim is already committed to a spot you're no longer heading toward.
Controlling Your Distance
Distance scales with how long you were sprinting before you jumped, and you still have some control once you're airborne. Hold W the whole way through and you'll carry as far as possible. Tap S mid-flight and you'll drop noticeably shorter, which is handy when you don't want to overshoot the cover you jumped from.
Skipping the Second Jump With a Tap of ADS
If your aim keybind is set to hold rather than toggle, there's a shortcut worth knowing. Tap right-click for an instant during your sprint jump, right before you leave the ground. Aiming briefly interrupts your sprint into a regular walk, and that's enough on its own to raise your gun, all while you keep the speed you already built up sprinting. Essentially, it just means you can do a fast jump shot with only one jump instead of the normal two. It takes some practice to time the tap correctly, so get comfortable with it in an offline raid before trying to rely on it in a real fight.
Remember: a jump shot isn't a fundamental you need for winning fights, it's a fun trick for a good clip. If you're going for one, sprint jump into a regular jump to get your gun back up, fire a single shot or short burst at the peak of the jump, and reverse direction the moment you land instead of continuing the way you were already moving.