Over time, do not be afraid to mix and match. I think I probably have the most odd ball and mix-n-matched sound pack out there. I cant figure out how to edit the sounds well enough otherwise I'd make my own sound pack just for main tank gun reload times. I have a few CD's with just sound effects on them and there are some simple sounds like "doors opening and closing" that are almost a dead ringer for an "unload and reload" sound for a tank gun.