Very nice, but I have a couple suggestions of things you could fix.
The Briefing doesn't start once your mission objectives text finishes. If one person doesn't press Start, the people can't play, so you may want to lower the last wait time.
Also, the Lag test was glitchy. When I did it, it worked fine, and then it went off again by itself about 10 seconds later, when the music went again. The drone hadn't moved again. I don't know if you had any waits in the lag test trigger, that may be the problem.
If I were you, I wouldn't have made the vision center in the corner for the lag test. They don't have to see it for it to work. It may mess up people doing an obstacle....
Might want to somehow tell people that killer is the banner, and dead is how they are banned, so a newb host doesn't play with it not knowing what it does. Also, your ban message was a little harsh considereing some people ban for no reason, or because they get pissed off when someone went at the same time as them.
Got a lot of friends,

, lol, that's fine.
Other than that, I thought it was pertty good, and the music was different from most bounds, but I still liked it. I couldn't get past the first obstacled either..., lol, but I didn't try that much.
very nice.