Gun Shooting Problem

I have two weapons in my game, a missile launcher and a AK47. whenever either of them shoots, the bullet isnt in the correct rotation. is there something i can do to fix this? In short terms, when I click Fire it shoots, the way I want it, but its sideways, or vertical, not the way I want it.

There is a script in unity called rotation constraint this script you can change it so it has a surtax rotation and will not change ever. you can change the setting in the properties of this script. Look in components then scripts it should be there.