This jump requires 3 main things which are all fairly simple:
1) length - jump at the end of the white platform to reduce length from the jump
2) timing - make the tiniest delay between crouch-jump and shooting (do at the same time)
3) angle - look down and aim to the right while walking to the left.

experimental tip for 3: whenever you take damage you can see the direction you took if from by the damage indicator (a red ray near your crosshair) try aiming down + shoot and see where the damage comes from - you want it to happen behind you, so adjust your angle when you jump to get most distance out of it. Experiment with it - video description has some info from my experience but again, generally you should aim to the right and that'll get the job done.
https://youtu.be/ckiLyfdMCjI
good luck - have fun.

Originally posted by Pogi820:

This jump requires 3 main things which are all fairly simple:
1) length - jump at the end of the white platform to reduce length from the jump
2) timing - make the tiniest delay between crouch-jump and shooting (do at the same time)
3) angle - look down and aim to the right while walking to the left.

experimental tip for 3: whenever you take damage you can see the direction you took if from by the damage indicator (a red ray near your crosshair) try aiming down + shoot and see where the damage comes from - you want it to happen behind you, so adjust your angle when you jump to get most distance out of it. Experiment with it - video description has some info from my experience but again, generally you should aim to the right and that'll get the job done.
https://youtu.be/ckiLyfdMCjI
good luck - have fun.

ayyyy thanks again pogi! you've helped me come such a long way with the det and its been my main for the past weeks and is probably going to be a main stay for me.

You're welcome