Still not working on the latest release.
The install works fine and - as of World of Tanks version 0.7.4 the installer now requires the .Net runtime version 2 and not version 1 - but otherwise it worked exactly the same as for crossover 10 and 11.1.
The game runs updates and launches without error.
The mouse update issue is still present making the game functionally unplayable.
There is a wineskin wrapper that will let the game function on Mac OS X but the mouse fix required is not in Wine core and has been described as a hack and not likely to be added to the main Wine code any time soon.