Cessna95
The group exercise is designed by HR people and is the same as all airlines.
They don't care how many bars of soap you think will be needed on the moon, or how many oxygen bottles to survive a ship wreck. What they care about is how you help the group come to that decision - do you shout over people? Do you say something? Do you say nothing?
And the bad news is that whatever people might like to think they are not so desperate that they will take anyone...