Yes, there seems to be a recuring theme here, WINDOWS 8-8.1 crashes, all the people i have seen on the official game forum that are NOT having issues are those NOT on windows 8
RANDOM CRASH: any gamemode and map. Some worse than others.
Win 8.1 x64
2x HD6870
8GB DDR3 1600
i5 2500K @4.4Ghz
Samsung 250GB 840 series SSD
Pittyful excuses are not good enough. As someone else already stated, "downtime" implies you will not be able to SEARCH for or SEE games, not you will crash EVERY SINGLE TIME YOU RUN THE GAME at some random point.