Advance Wars: Days of Ruin

Days of Ruin is set in a completely new world, where a large-scale meteor shower has triggered a massive global destruction that has wiped out 90% of the population. In the aftermath of the disaster, the survivors have banded together to form militaristic gangs that fight over the last remnants of civilization. You take control of Will, a young military cadet (whose hair is admittedly a bit spiky) who quickly becomes embroiled in the conflict at the beginning of the game.