Eh, why not. Should be funny.
Name: Chaosvolt
Country: USA
Gender: Male
Class: Specialist (good nerdy "magic" class)
Biography: Originally he survived the invasion by staying far from civilization, scavenging the remains of old battlefields and crash sites before being picked up and recruited. Having been technically-inclined even before things went pear-shaped, he found a new role as a technician and combat engineer.