It would be chaos. Absolute chaos.
But that's basically the concept of the above Metal Gear Solid fan film. Snake does his usual 'stealthing around in a cardboard box thing'. It seems like a fair enough fight until Snake finds a towering pile of cardboard boxes. Then it all get a little bit unfair.
This is a cool little video. Doesn't have the laugh-out-loud moments I was hoping for, but I think that's because so many of Metal Gear Solid's insane logical leaps are hilarious in and of themselves. We've just all accepted them at this point.