Find where your steam.exe is located and right click and choose properties. Enable compatibility mode for Windows Vista, do not turn on Administrator. Launch it once and it should work, you only need to do this the first time. You can turn steam back to normal after you've done this. I struggled to find an answer but I figured I'd post this to help people!...

Is the campaign safe or can they hack me? Do I need to play offline to be safe or canI play the campaign without worrying (and being online).

And not even the Zombies pack is discounted. Game still never went below the Sony's platinum price, this publisher is an absolute disgrace. I bet they dine with EA and Ubisoft daily.

When I click the play button, steam will say that the game is running but the application won't start or show up or anything. Does anyone have any suggestions?

I have reinstalled the campaign ( which crashed several times, lol) and zombies. From what I have read, the MP ( including zombies ) is unsafe due to vulnerabilities. My question is, I will be playing these on the Steam deck. Has anyone played it safely on the Steam deck, or is it just as unsafe?...