The strangest thing about this DC model is that if you completely remove the DC_barrels.gr2 file from SH5/library folder, game will still render DCs as if nothing happened...Try it you'll see...
It would be easy to change texture or even remodel a DC, but there is something else outthere(a hiden secondary 3d model of DC with strange thing wrapped around it) which I can't find neither understand...
Another good site(more specific):
http://www.navweaps.com/Weapons/WAMBR_ASW.htm
Hm, another question: Can I create an alpha texture for gr2 file to conceal parts of a model I don't wish to be seen?