Glad to be of help, there isnt much specific info available anywhere that ive been able to find.Helping each other helps
everyone 
With regard to my muzzleflash, Ive just made this over the exported US Ranger, I didnt edit the muzzleflash in any way.Its surely one of my skeleton/skin/animation W3D Export settings, but Ive trialed and errored as much as I can stand and I still dont get it right =(