"Guys? Guys? Can we pull over? Yeah, I know we're saving the universe and stuff, but I have to go bum around the Mediterranean and become the mythical forebear of Rome."

Aeneas and Ulysses would spend most of their time giving each other the stink-eye.

If I were going to try an epic hero in this setting, I'd probably do it as an OC from a space opera version of their universe, so they wouldn't spend all their time being boggled by spaceships.