Alright, basically, I've made a special master chief biped which has about 3-4 model permutations, but the problem is- when I export with Bluestreak, I get messages telling me that the "bones aren't nodes", and the models don't animate at all in the game, they just sit there in the T-pose with the gun floating in front of them. I cannot seem to find anything on this in specific, so if someone knows what I did wrong or what I need to do, that would help. I suspect it has something to do with the bones not being nodes error message.

I don't think bluesstreak can export animations properly.

He says he has a problem with exporting models, and not animations.