Sergeant Louis McKnight is an Emmerian Tank commander. His tank crew consists of himself and two other Sergeants, Torch and Hobsbawm. They deserted to break into Gracemeria Central Bank. After missing their mark, they find the Golden King and many other treasures, along with Matilda, group of children she was with and Lieutenant Colonel Voychek that were abandoned in the invasion.
Extras
According to Ace Combat 6, Sgt. McKnight appears to be very lucky, for example:
-On the landing craft after dropping his hand down in poker, he had 4 aces.
-He sneaked a tank into Gracemaria while it was under Estovokian control, we do not know how successful that operation was, however.
Sources
http://acecombat.wikia.com/wiki/Ace_Combat_6
Names from Pilots of Ace Combat 6
picture from McKnight Reasurres Torch and Hobsbawm