Asymmetrical game mode / maps

I searched, if this has been suggested before, my bad.

What about a game mode where one team is on offense, the other on defense. When the moneyball is destroyed or time runs out, the teams switch roles.

Not to say copy off of TF2, but I really enjoy maps like Dustbowl because being 100% on offense or 100% on defense seems to help focus a team.

Just an idea, thanks.

I think that is a cool idea, but I get the feeling that everybody would be inclined to pick the same class, I can see 6 snipers defending and 6 assassins attacking.

That's a good point. It wouldn't be any fun if for instance the defense team always won. Hmmmm...