I think there should be a rule against moving in a zig-zag pattern while being shot at. Why? Because it's annoying and it simply looks stupid. Let's be real, if you was running away from being shot at your body will get the fight or flight effect which will make you run and get to cover from the gun shots. I don't think you can jump up and down and move side to side while being shot at because your body would be more focused on getting to safety. Try this out, Go into your back yard and try to run forward while Moving in a Zig-Zag pattern while jumping.