Hi guys! Human Chall here! Got an update for y'all:
Challenger's government name...
is NOT "Challenger".
He adopted that as a nickname, unaware of the spaceflight ties, but his TRUE name is Charlie Eccleshall!
His backstory altered, as well: he's a pilot-turned-astronaut from Sitka, Alaska. Also, he kept the headset from the helicopter he piloted*: a
UH-60 Black Hawk that he lovingly nicknamed "Commander." (i traced his rifle lol)
[*seen in a different illustration]