Battle for Caen hotfix

[Sneaksie]

This small hotfix fixes some annoyances in MP missions (Challenger tank being empty and Nebelwerfer fire coming from British side of a map) and adds ambient sounds to Caen battles (campaign, multiplayer and generator ones).

To install it, simply unpack this archive into game folder overwriting existing files. If you're using Steam version, please note that until this hotfix goes live Steam would revert to old version if you give it 'verify cache integrity' command.