First of all I had downloaded this game from my Xbox one.Everything was ok until last update.However I turned on the machine and chosen halo 2 from master chief collection.Then I started to keep going from my last save,after install my last save,by the way the mission was uprising.Anyways Arbiter had gun but I couldn't see it.Also Brutes were totally like ghost.I could shot but still couldn't seen my gun.I need help please connect with me thank u