When people are already playing, you can usually have nothing better to do, so you should be able to spectate a player in multiplayer in my opinion. This can lead to an advantage for these sorts of people that join while the game is going on. As of now, i've been told this is a dupe, but im gonna extend on this, in case people misunderstand my statement. As sandy said, "I think what you are requesting is the ability to spectate other members of the multiplayer lobby that you are in if you are not playing because you joined while they were already in a map (or something like that). Just clearing it up because I had to read your request a couple times before I was sure". Thats exactly what im trying to say here.