I dont think it a combat model but is 1:144 scale http://www.youtube.com/watch?v=Sh5H9ouMo9U (Not Mine)
I will have to check that tonight but I am pretty sure it's mine. I only seen one other and it was a larger but it was going very fast and seemed to be in some kind of river system .
Gunner you can see more photos of the MO in rough water in the Photos part of the forum that says "Where's the boat? " I have more here of her in the forum. Will search further and find them for you.