the model won't show up and it just makes my character's head bald. it's completely invisible, the only good thing is that the game hasn't crashed yet in the process.
does this have to do with anything involving the position of the model or something? I can't find the solution for this anywhere.
also the helmet I made/used:

i'm really looking forward for a fix here, the model is in .mesh format, I used 3DS max for the modeling and milkshape 3D for the exporting.