I found a case!!!!! Filled with survival gear, messages, puzzle piece, and a USB!!!!The exact spot was marked with an empty Swamp Pop satsuma fizz bottle on a small mound of fresh dirt.
The message, apparently from Howard, says:
Listen to these and you'll see what I'm talking about. It's almost right on top of us.MugensKeeper will be uploading the contents of the USB drive soon, so keep checking back!
You'll need a whole lot more than this kit if you're gonna have a chance to make it to the other side.
Good luck to us all, friend.
BTW, Congrats to MugensKeeper for being the one to find this. He had driven around to various GPS coordinates before we found all the numbers, so I'm glad all his hard work paid off!
UPDATE: Here is a more in-depth video of the contents of the ammo box. After a closer look, it appears that there are two USB drives in the box, and puzzle pieces from the Cat Fish puzzle seen in the trailer.
UPDATE 2: Here are two videos(!?!) of the audio files being played on an old computer.