Questions about hatless sniper model and mdldecompiler

I’ve been wanting to modify the way the hatless sniper’s hair looks, add some more frills and wingdings, but I found out that there’s apparently no model for hatless sniper. If I’m wrong and there is, where do I find it?

Also, I tried to use mdldecompiler, fixed version, to decompile various things such as the sniper model itself (which I found out I already had, ha) and some hats. It always turns up “Unable to load model.” I’ve changed the 0 to a comma too, but no luck. I’d appreciate help with this or if someone can point me in the direction of another decompiler.

Sorry if I’m asking obvious things. I’m stupidly new at this. :s I plan on using Blender for modeling btw.