My friend and I created a new scenario the other week, just thought I'd share it here. We play-tested it a couple of times and it seemed pretty well balanced. Let me know what you think of it.
boardgamegeek.com/filepage/74143/defend-the-hospital-file-1-of-2
boardgamegeek.com/filepage/74144/defend-the-hospital-file-2-of-2