Bullet Impact Effects

Hello

So I've made my own mod for FP, replacing models, effects, sounds etc., and I now want to add the impact crater dust effects that you get in the FFUR and SLX mods. The problem is that I don't know how to put the script into the game, and it obviously isn't simply a case of replacing the settings in the 'cloudlets' config.

Could anyone help me and tell me how to put this effect into the game? It'd be greatly appreciated.

Incidentally, does anyone know how to change the number of explosion cloudlets that appear when a tank shell explodes? It's a source of slight irritation that the Sabot round makes a huge fiery explosion but the HE-Frag round creates little more than a puff of smoke.