But then to save time, they start to just put their domed cities on huge caterpillar tracks. To keep from having to bury their city for radiation protection, t

But then to save time, they start to just put their domed cities on huge caterpillar tracks. To keep from having to bury their city for radiation protection, they start adding anti-radiation armor. However, the laws on Mars break down after Earth civilization collapses, and these tracked cities start arming themselves with cannon. Cue action music. It's a sucky situation, but it makes for an awesome video game!