Advance Wars: Days of Ruin impressions at Nintendo World Report.
"The first thing I noticed about Days of Ruin when sitting down to play it for about a half an hour was that Intelligent Systems isn't messing around with the game's tone. Instead of the happier, colorful settings that the previous Advance Wars games had, everything in this new DS version is darker, grittier, and a little more serious. No, not on the same level as Saving Private Ryan or Band of Brothers (at least, not in the first few levels), but you're not going to see a carefree smile on any of the COs in this game. Just like a new coat of paint can transform a car or a house into something new, so too does this more realistic take on Advance Wars. Frankly, I love it."
Full Source: Nintendo World Report