I’m attempting to use a boolean to swap between ammo types by pressing the X key. my issue is that since this is in the update function it keeps triggering both to occur. is there anything I can do to keep this from happening? 
A boolean is a binary state. It has two values. If you have two states you can use a bool if you have more maybe an enum or other system would be better suited
if you are trying to flip a bool do it like:
if(Input.GetButtonDown("MyCommand"))
{
myBool = !myBool;
}
P.s. the GetKey and GetButton can run multiple times as every time the frame runs it will be reevaluating that if statement.
You want the GetKeyDown and GetButtonDown.
