Hey, OP?
You can't just do Orange Star without Nell.
Also, you gotta do Blue Moon, Green Earth, and Yellow Star too… (Drooling over Sonja) In fact, Yellow Star is the only one that matters.

Well, this is a nice surprise! I thought that Advance Wars was dead in the water, especially with Fire Emblem taking the spotlight as Intelligent System's golden child (which isn't a bad thing, for the record) and nothing related to AW having surfaced in the last twelve years.