So... dumb questions... do we buy tickets? Do we see the game? Or are we hanging out in the gate area? I don't have a clue how this works. 
If you sign up to troop the event you do not need to buy tickets.
We basically hang out on the concourse and greet people as they come in. We wander the seats and concourse waving and taking pics with the crowd. It's usually until about half time. Sometimes longer, it's up to the troopers. Watching the game is on and off while on the concourse area. Sometimes they have some troopers stand on the sidelines of the field for part of half time. It's a little different each time.
They give us a locker room area to change and take breaks as needed.
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