you might ping codeweavers, they may have a solution. You might also try blowing away the update cache at ~/Library/Application\ Support/World\ of\ Warships but this will trigger a very large re download of the game.
I was trying to install WOW and got to a 100% when I suddently get a error message: Something like
critical error - unable to install updates - the application cannot continue - for details see log file
Heh, gotta love how MS likes to 'turn all the garbage on by default' ... I'm amazed they turned this one on, but then, I'm not amazed. Most people would not 'opt in' if asked during install, so in order for it to be useful, they just blast it on for everyone and only the knowledgable will know to turn it off. Kind of a shrewd move.