Were playing this and were quite confused by the lack of spectating once you're dead and the lack of any revival mechanics, though we might've simply missed it.
Otherwise fun game with good atmosphere! :)
Edit: After playing a little longer we discovered that you may die once then you can be revived when someone uses E, the hitbox is just a little small. Once you die for the second time you may spectate. I wish this was explained somewhere! so I'm leaving this here in case anyone needs it in the future