Played the basic scenario three times yesterday after watching the awesome Doctor Who 50th anniversary episode. The kids took turns as the Mk III, though the youngest got a Mk II due to time constraints, and I played the defense. I lost the first two games due to some bad die rolls and not fully understanding just how difficult it is to damage an OGRE. The kids loved it and want to play again today. Thinking about a 2 on 2 game with everyone in a Mk III. I'll need to check the scenario book but I think there is one like that called Operation K or something like that.