sounds cool but "gas" systems are (from my expertice) just a ball spawner that spawns BALLS to be honest that is not easy for meh! but you can actually get some ideas from 2 scenes i guess that use what they call "black powder"
but if this ball spawner system thingy dosn“t work for you... you could just use springs which is easy for me to use i have some scenes with and i still got some more scene to load up with spring as "expanding gas to a cannon"
hey guys have you ever consider why a nuke makes mushroom explotion????
i think it is werid it does that (fantastik!!! CREATION EVAR IN ALGODOOOOOO!....)
so what you guys???