I did all of my MAC flying as a passenger, from 1970-1974, I don't remember any mayo or mustard packets, probably not invented yet...
Might have been a boiled egg, don't remember
Military hops saved money, but were maximum inconvenience.
Rode a C-141 from Virginia to Las Vegas, stopped in the damnedest places, asphalt strips in the middle of nowhere, nobody there, ramp down, kick a few pallets off, and take off.
Supposed to go to Vegas, I got kicked off in Utah, by some general and staff, going to play golf.
Left a bunch of GI's stuck in the middle of Utah!
Rode a C-118 ( DC-6 ), again from Virginia to Vegas, 16 hours, right engine smoking and leaking oil all the way.
Had to fly under 10,000 feet, as the plane had too many holes to pressurize.