what about implementing (or count with) the physical, respectively mechanical ..features of guns, in during their shooting phase ( - while shooting actions) - for example, :
1.
(a heavier), bigger gun like "kick", at shoot,
2.
(semi)automatic rifles (AK-74, etc..) like "arise-up", "push´ing-up, at shooting,
(..SA-57 - "vynáša, strašne dvíhajú, pri strelbe..)
3.
and small auto- guns, (like UZI, and so on), - while shooting, they (sometimes) like "spread", just such crazy, wildly and unwaitingly, -suddenly push-up, & spread, "jump", all around, and in all-directions.. at shooting