Recommendation.

Originally Posted by W0ef

So you synchronize your game files through steam before applying the patch?

Sounds interesting for sure, can´t wait to get home and try it.

It's the "Verify integrity of game files" option in Steam. When the scan finds you have un-official components (beta patch files) it re-downloads the official stuff and sets your game back to how it was on the last Steam update. THEN you apply the latest patch, though I ran the official version first and then deleted the cache before applying the latest patch.