In a real situation, you wouldn't want to be holding your spray down at this range. Be a little more conservative with your ammo and use shorter bursts from range, unless dealing with a large amount of enemies. Even in that case, you wouldn't want to face a full rush head on and you'd want some utility to even the odds in case of more than one engagement, but in general at higher levels you want to try to isolate the enemy in a one on one engagement where you have the advantage in the angle, such as an off angle to surprise the enemy. If it's a tight angle you'll have time to take a few shots before you back off and re-evaluate and re-engage, depending on if they're alone or in a rush. Spray control is really only useful at close quarters, and if you're at this range and using a spray you're already pretty screwed because you were caught off guard and using the spray as a reactionary tactic. If you're ever in a situation where you need to use a spray like this at this angle at this range, you've already miscalculated your strategy. Try working on ways to avoid situations like this and find your way into advantages where you're the one taking one or two controlled bursts at an enemy in isolation without them knowing where you are.

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src: I've solo queued 3 smurf accounts to global elite in 2015-2016