The fact that you can't call in airstrikes is debatable. For the in-door sections of the Zomburbia minigame, I din't have a problem with it, as they are clearly indoor and you can use the airstrike outside. What's more annoying during this minigame is the Gravity Grenade spam. Everybody picks the Imps and than they win by preventing you from activating the last event. On Moon Base Z, it's complete nonsense, as you can call in airstrikes in every other bio-sphere. For Greath White North, I'd say that the drones should be able to call in their airstrikes, because they come out of nowhere, but not the Butter Barrage, because it wouldn't make any sense. Just my opinion.
