This is intended to make it as difficult as possible to attain any resources from. Any barbs sninjaed inside between the base and the outer huts & camps will result in them spending time attacking them and getting shot in the back. Clan castle is used to defend air if necessary, as I couldn't make room for it in the interior. Goblins taking the quickest way in will be immediately ejected from the core, and remaining troops will be in the ninja zone of all outer defenses as well as bombs placed just inside. So far I've had incredible results with this base design, hope you find it useful. :)