First off, thank you and welcome to the game. This post is really a place for you guys to Q&A with the game designers. Questions on features, campaigns or scenarios can go here and we will try to get to them to help you out.
So if you are new to the CM you probably want to start easy and small to get the feel for the game. Check the scenario notes as designers often will highlight which side may be easy or harder. For example, "Valley of Ashes" is by-design, pretty easy for the Blue