Hosting/Running COOP Missions in Lobby Mode

[AV8R_]

Well we can get Lobby/COOP mission to partially work. In making a mission,
one has to make sure there is a respawn site over a base to allow clients to
create a plane or group of planes. We still cannot get clients to join flights
already made that the Host can join and fly with. Plus, the clients still dont
show up with a player count under the flag of their choosing. Only the Host
shows up as 1 Player, the client shows up as 0.