Ideas

[Ronald_Reagan]

Use a VARP essentially declares an int that you can change later on ingame. You can use this int later on in your code.

So:
VARP(myvar, minv, defaultv, maxv);

In this case:
VARP(skipnoammo, 0, 1, 1);

however you use the numbers is up to you. You could do:

if (skipnoammo == 1) docode;

Obviously disregarding any syntax errors I made while writing it up.