Hey packman,
I saw your other reply, so I want to respond! Unfortunately Control Room won't be receiving updates - partially because it's quite old, and also because I have other projects that I'm working on. You can read more about it in the Development Log section above Comments.
But thank you very much for the feedback! I've wanted to create a sequel that includes some of the things you mentioned, such as medic units, and many more types of maps. However it may be years before I'll have time to start on it :(.
I'm very glad you enjoy the game! Thanks again!