You know you're in trouble when the first scenario after the tutorial pits you against three foes. If you've played a RTS before it's not that bad but if you're new to the genre it's the deep end of the pool. True, I'm more of a explore and build player but I was still disappointed with the difficulty of the campaigns. If a game wants to be difficult I'd prefer it be with good AI, not swamping you with an early rush or overwhelming numbers. There is a simple formula to win most scenarios: survive the early rush, create a defense and assault the computer opponents one at a time, and you'll win.