Pretty terrible quality like most leaks, but about 8 minutes of gameplay. Rest is some super weird stuff, referencing Halo leaks of old. Also he may or not be in a barn.
Gameplay starts about 2 minutes in, and the music is NSFW so turn down your speakers. But if you're at home, I fully suggest listening to the music.
And without further adieu, I present the weirdest (best?) leak ever. I recommend starting from the beginning if you want the true, director's cut experience:
Thanks to Cyren for finding the video!
5/28 Update, new screenshots leaked.
Thanks to Juan and Over for posting them!
5/30 update, More screens
. Thanks again to Overdoz1z
5/31 update, New leaked video
. Thanks Spider_Jerusalem! Here's some Screencaps
that TheOddOne took from the video.