Indeed krusty, thats why i wounder so much why people think they need code to make objects and such for aces high.
They dont, all they would need to know is how HTC set's up the models, how they split up, so on and so forth.
Have made plenty of models for mmorpg's and not a single one have i needed the code to get working ingame.
Sure i had to assign every bone, and skins .ect
Right now i can honestly say im not sure how aces high handles its models.
If they are all one object, with a bunch of "brakeable" attachments, or if they are done with key frames.
*example* You have a full plane model (un damaged) you make another model (say a p51 wing) with no flap.
Now, if the wing takes damage in that area, it says "wing left (wing with damaged flap)" and thus it changes to show you have no flap on that side, and the code also (spawn flap falling off here) and thus we see a p51 take a wing hit, loose its flap and have no flap to show for on the plane itself.(The wing being the only part* changed out on the p51)
The other option, is to have a 3d model thats pre split up, and held together by the game, ie. body wings, tail stab's .ect
The basic functions would still work the same, but the visual effect im sure would be much much diffrent.
Or maby its a full model, and parts of the model are "switched" to show the damage effects, ither way..it works.

uhm..Kinda hard to put it into words with my limited spelling capabilitys.
:Edit: simply put.."ramble ramble ramble ramble ramble." There.