You're totally right MulleDK19 I did that. Can BIS put a block on it to make sure that can't happen?

Also when I tried to join one of my friends servers, the player list was empty and I had to click an empty text box. I clicked it and everything seem fine but when I loaded in the MP missions that's when I couldn't progress any further. So I backed out of the my friends server and tried again and this time the same empty box came up but I was able to see the Playable units list. I slotted in and pressed okay and was receiving the mission data. By this time my friend had already started the mission. Once I got in everyone got turned into a seagull.