Heres how far i've got

more work to to do inside but it flys ok i need to loose a few of frame rate unfreindly details and sort out a bouncing bomb.
if use the torpedo as a base it tends to dive at the ground (sea level at 0 alt)if you are in the hills.
If you use a bomb it drops at the dam but you get no bomb model following the effect.
As yet can't sort skip though
also the dam sits on the water but can't get backside drop in ground or shoreline to show
n.rev