It gets boring if you play on normal difficulty and in the standard campaign. But try playing on more challenging maps. And I highly doubt you'll find them so predictable and easy.
If you're interested, write to me and I'll send you a map that will push your brain to its limits:)
Sincerely, VDV_forever.
If you have any, it would be best to post them on the forum!!!
And send me one to my inbox, for sure!;)