Originally Posted by
Snorkks
What's broken like? Seems fine to me.
You don't just expand the map.. expand the back story too make changes to it, add to it.
What happened to the rogue agent? Continue to track him, give him a wider organisation and track and kill his generals, mutate the virus, add another gate in the terminal with a working underground train that links multiple cities, add missions to get the train working, the story line could go off in so many different tangents.
Brining out a new game seems a waste, it'll just be the same game with a different skin.