People probably already mentioned it, but throwing the knives is a little buggy. Can't seem to throw in front of me. Only sort of works when I throw it sideways. Tracking should be fine, just played zero caliber and throwing grenades was perfect. The rest I really like, glad to be a backer.
IDK what headset you use, but with oculus you go to your desktop when it's on, then open the location where its downloaded and open it up. It should launch in your hmd when you do.