(enhancement)

Here are a few videos demonstrating the recoil system.
https://www.youtube.com/watch?v=zxsGHrPQnoU
https://www.youtube.com/watch?v=pDZnIPjYymw

When shooting a gun in AoS, the sight overlay (a simple .png) is enlarged temporarily and then resized back to the original size. This simulates the recoil (the gun going back when fired) of a gun.

If this is added, then the amount of kick should be based on the recoil number.