When I installed Rainbow Six Lockdown, the interface displayed message:

"CRC error: The file F:\Program Files\Rainbow Six Lockdown\data\map\m11_sec_01_pc\m11_sec_01.map doesn't match the file in the setup's .cab file.
The medium from which you are running the setup may be corrupted; contact your software vendor."

The install process was finished anyway. But I always fail when trying to play the second mission/map (Algeria). The game crashes
and brings me back to the desktop. The rest missions/maps can be played without problems.
What's wrong with my game files? Is the file m11_sec_01.map really corrupted? If it is, where can I have the correct file?
Anybody can help me with this?
Thank you.

You should try posting this in the PC section of the forum.