The main problem eBay is gonna throw back at us is that the complaints about stealing files must be presented by the original authors. We don't know whose files he's using. . . we might be able to positively identify the helmet from those pics, but that's it. There aren't many grenade or trip mine files (and the grenades are most likely mine), but that's not concrete enough. We have to know exactly what files he's using, which unfortunately means that most likely someone is gonna have to buy them.
I don't know any of this for sure, but these are the general problems we've had before with shutting these guys down.