Go to keybind and set the sprint to HOLD
Set Prone key to anything you want I use Scroll Wheel
Sprint and spam the Prone key you set or use scroll wheel bind
That's it now you look like a dog
Reminds me of the headquarters glitches on WW2. Might have to try this on Xbox. Also for those of you asking how to do it on console, just follow the text tutorial and do the same thing but on your controller to try and get it to work.