This is pretty detailed and great for a larger varied group like this. It'll help people quickly get acclimated to everybody else here. We try to make things a little more interesting in my small group. Several maps have a designated "Death Room" that we'll all charge for at the beginning or whenever we need some kind of group spot. Makes the beginning of a match fun every time "To the Death Room!". Or we call out "A team" "B team" "C team". Flooding the coms can be annoying, but remember that you can be serious and fun at the same time.
We also let it be known when there's somebody teabagging that needs a coordinated retaliation. For instance: "We've got a teabagger: Zoba". That way everybody in the group knows who to look for. If you're together when you kill him, it's time to do the most epic teabagging the dude ever got - dancing, sitting, bagging, meleeing, shooting, whatever. Just make sure he understands that bagging has consequences.
Ideally you're winning or going to win of course.
I'm gonna float a modified version of this map to my expected Trials group