Think about it, you could be a human member on the banished somewhere on earth, and you could be sabotaging UNSC bases and fighting the local police and military forces of earth.

It could take place in a New Mombasa or somewhere like the Greater Chicago Industrial Zone or maybe even a city like Istanbul, and we could see what 500 years of change has made the cites look like.

You would start off as a small-time criminal that was jailed, then during the chaos of the created, you would escape, and you would join the banished during all the chaos.

This would be a good way for Halo fans to see what happened on Earth after the created attack and what Earth looks like now

You would have a wanted system similar to Gta and Cyberpunk, and the more destruction you cause, the more Police and even military units are sent after you.

Your main mission in the game would be to steal and sabotage the UNSC wherever possible and try to recruit other criminals and even people dissatisfied with the UNSC after the created rebellion into the banished.

I'm not sure what other people think of this, but I think this would be an amazing video game idea.