Besides supporting the HTC Vive and the Oculus Rift we now also support Windows Mixed Reality headsets!
In order to make it work on that platform, you'll first need to install the Windows Mixed Reality for SteamVR package (http://store.steampowered.com/app/719950/Windows_Mixed_Reality_for_SteamVR/)
Once you've installed that, this game will work out of the box with your Windows MR system.
Happy zombie killing (with friends, of course)!