Area 51 does not exist. And if it did exist, it would be nothing to do with the game Deus Ex. We certainly do not have a screenshot of a map of that name in an only partially textured state, and nobody we know is working on remixing such a map. We deny all knowledge of any strange or unusual happenings in this non-existent arena - and you certainly didn't hear anything about it from us, understand?
These screenshots are obvious fakes. The first purports to be a view from before much "texturing" had been done, taken by agent "C" before he disappeared. The second is by a different operative, allegedly, and shows inside a cabin; then we have inside a warehouse, and then a view from above - so it says.
But forget all about it - if you know what's best for you!