I'm trying to deal with TF2 player animations. In this case, it's for Demoman's grenade launcher.

When compiling the source animation with Crowbar it correctly animates the cylinder and barrel when reloading or firing, but when imported the weapon_bone's are missing from teh rig, and when exported via Blender Source Tools with no modification the animation comes out 70kb lighter and the gun is no longer animated when recompiled with the new animation.

What I noticed is that some animations import fine with these bones intact, for example Spy's revolver animations are correctly imported but are still about 10kb lighter than the source file when exported. Maybe some other stuff getting lost too?

Unfortunately I do not have Maya so I cannot test these with Valve's official tools. :/