You say the only problem you have is lack of online? Last time I tried this game there were severe rendering issues at the character select screen in addition to connectivity issues.
Hello @massatt212, we're using one issue report per unofficially supported game title, so I've gone ahead and transferred this issue report to https://github.com/ValveSoftware/Proton/issues/348#issuecomment-454792367.
Game Runs very well could be Whitelisted but their is no Online Gameplay
steam-577940.log
Is it possible to fix the Online Feature in this game ?