Weird that the model viewer doesn't work...
Gotta say, lovin' the Goblin love this Contest is getting; 'tis only proper. Personally, I was in the market for a "goblin piloting a fighter plane" model, and this one (cutting out the bomber) might just be perfect for the job (if a bit low-poly (as it should be)).
I'm glad you didn't mix animations (Attack only features one of them attacking, etc); that will go a long way towards making this useful in-game. Overall a good job; love the idea of a bomb-toting bi-heli-blade flyer. : )
Good luck in the Contest!