In Unity/UNet: How do you properly spawn a NetworkPlayer? Right now, I'm doing it like this from inside a NetworkManager derived class:

   public override void OnServerAddPlayer(NetworkConnection conn, short playerControllerId) {
        NetworkPlayer newPlayer = Instantiate<NetworkPlayer>(m_NetworkPlayerPrefab);
        DontDestroyOnLoad(newPlayer);
        NetworkServer.AddPlayerForConnection(conn, newPlayer.gameObject, playerControllerId);
   }

This code snippet works pretty well and both clients can communicate with each other. However, there are a few little issues that arise only on the host:

1. In Unity's hierarchy-view on the host, there are only two NetworkPlayer instances. Shouldn't there be four NetworkPlayer instances on the host? Two client instances and two server instances? If so, do you have any ideas what could cause the missing NetworkPlayer instances?
2. The two NetworkPlayer instances have both, their isClient and isServer flags set to true. But only one of the has it's isLocalPlayer flag set. Now I wonder if this behavior is as intended? And if so, how do you distinguish between the client and the server instance of a NetworkPlayer?
3. Two player behavior: If the remote client sends a [Command] that changes a [SyncVar] on the server, then on the host, the [SyncVar]-hook is called only on the NetworkPlayer instance that represents the remote NetworkPlayer. The [SyncVar]-hook is not called on the host's "isLocalPlayer-NetworkPlayer" instance. Shouldn't the [SyncVar]-hook be called on both NetworkPlayer instances?

Any advise is welcome. Thank you!