Thanks for the imput, guys.
It's a private game, I forgot to mention that. The plan is to everyone leave the office a little earlier (say, 5:30 PM) and we should all go have some fun at a nearby speedball field for one hour or so.
I think I'll go with semi as Stilgar said.
That will also allow me to do a nice picture of an Automag only game, something that hasn't been seen here in Brazil for over 10 years, I believe.