Good day to all!

I've tried playing with bots on different modes and different maps.
Sometimes the game would death-freeze for no apparent reason. The single player campaign never crashed.
The question is - has anyone experienced detailed difficulties? Has anyone been able to beat this issue?
From myself I can add only one clarification - in all cases of freezing that I remember, I tried to reload the shotgun. With the rest of the weapon, the game did not seem to freeze.

Thanks for help!