Inspired by What-If's Inky:
Reason for Markings: The Diamond Checker pattern was used by the 318th FS in WW2, and they were stationed at McChord for most of their service. The nose pattern also 318th FS. "12" for Seattle's Motto of the "12th Man", the Fan. "Blitz" is the name of the Seahawks Mascot, and then the Seahawks emblem.