pssst you are thinking too much mate :). yes all good points as you can see from this mech1 sketch the gun is on the parent and not the hips. this one is more about just messing aboot. if you think about it the mechanics are all high in the sky anyway as its supposed to pick up its legs and take off which would be a nightmare lol.
anyhoo this is more about me getting used to moi. while modeling it i have thought of loads of changes so maybe i might put them into opertation later. (once i know i can model them right in moi that is )

thanks for taking the time to reply mate