So, I made this custom Assault multiplayer game, right? Had a few odd issues, but in the end it all worked out and I got the mission published. However, I am fidning that I cannot get my friends in to play the mission with me. Is it that I simply cannot have any other players in with me on Assault type player-made missions? I have tried creating a party and then downloading and playing the game, but for whatever reason, I can only play it by myself? What is causing this problem? Is there a problem at all, or am I just not seeing something? Please help.

Also, there needs to be a Team Deathmatch in this game. Why is there no damn TDM game mode? Deathmatch game types are a staple in FPS video games.