4 down (no pun intended) 1 to go; the Black Hole Sub is the fourth papercraft Advance Wars Sub I release! ;o)
The YouTube video was inspired by a 2002 Dutch beer commercial, where a submarine surfaces in the unlikely place of the ditch next to a small cafe...
(the submarine in the commercial is actually a (mock) Dutch Walrus-class submarine - which I also made a papercraft of before: link! ;o)
The parts and instructions are available from my papercraft webpage, together with all the other papercraft Advance Wars units (and lots more! ;o)
Have fun building!