Ok, it seems like we're finally reaching some sort of conclusion to the Osaka Mission (although it seems like an entire story arc to me), and it's been obvious that Oku has been trying to get across a message about the nature and ways of people put into these situations. For the majority of the mission it seemed like the Tokyo team had been too soft; too weak; and too reliant on single, strong team members with the others pulling their weight...just not much of it.
In contrast to this you have the Osaka team: a rough that hardly can even be called a 'team'. They hold the exact opposite attitudes the Tokyo team have. They don't rely on each other, they hold strength with respect, they'll do anything to get stronger and not run away from the game-aspect of the missions. It was like Oku was trying to tell us that the reality of Gantz just didn't fit the Tokyo team, that after the way they'd spent points at the conclusion of the Oni mission was wrong - that he was trying to show them the need for raw, consistent power.
However the Osaskan's made a crucial mistake: being powerful is good, but not recognising that the aliens will always be inherently stronger was a massive mistake that cost them their lives and - in the case of Kuwabara - a lot more :S Plus it seems like team-work, and not strength, is what is going to win this battle.
So what do you think the message is, here? That the Osakan's strength is still the way to go, or that the Tokyo team (with issues to sort out tactically and team-wise (Inaba/Takeshi, namely)) were always in the right?