Triggers and groups

[Durandal]

Ok, this is a somewhat advanced question for me, because I don't really have any idea how to do this...

I want to set up a trigger for an MP map that will display a hidden objective, do a brief camera sequence, and start a music track.  That in and of itself is no problem.  

The probem is, this is a five person co-op mission, and since I have no idea what players will survive to that point, I can't create a trigger for just one of them, and secondly, I can't put multiple (one for each player), because not only is that crude, but if more than one of them make it to that point it will roll the camera and music sequence again, which I don't want.

So I guess my question is, how do I group multiple units to a single trigger?

That's a question I've been struggling with for awhile anyway.

Much thanks,

-Durandal

[icarus_uk]

You could just group the group with the trigger, and then select Any Group Member present from the options.  That was as long as one person from the group is in the area it activates the trigger.