Naw, I didn't know Corporals actually existed in the US Army system, every other time I've seen the US Army rank listings it goes from Spec-4 to Sergeant, I had no idea Corporal was a designation for an E-4 in a command role. See how bad I am?

And it made perfect sense for the game - the NPC had been placed in a command role apparently due to all his superiors turning into/being eaten by zombies. I'm just glad I didn't issue any mistaken pedantry at the table.
You don't get MASH re-runs in the UK? Corporal Klinger and Corporal O'Reilly spring to mind when I think "Corporal", and the 4077th MASH was definitely an Army unit.
Anyhow, I do think in Vietnam stories, it's much more commom to here "Spec 4", but for WWII or Korean War stories (like MASH), you hear Corporal a lot.
In the British Army BTW a Corporal is a section (squad) leader of 8 men, a Lance Corporal is his deputy leading half the section, & appears to be equivalent to a US Army Sergeant from what I can tell, whereas the USMC rankings appear similar to the British. I know when I was in the Army, being a Corporal was a pretty big deal.
May I quote the Simpsons?
Bart: Grandpa, do you think I coulda been a Fighting Hellfish? (Grandpa's WWII unit.)
Grandpa: Heck, you've got a fourth grade education and a give 'em hell attitude. You coulda made Sergeant!
I've discovered that military ranks are global, though some translation is required. This link has the official NATO conversions:
Ranks and insignia of NATO armies enlisted - Wikipedia, the free encyclopedia
OR-6 = British Sergeant, US Army Staff Sergeant, USMC Staff Sergeant
OR-5 = <no British rank>, US Army Sergeant, USMC Sergeant
OR-4 = British Corporal, US Army Corporal or Spec 4, USMC Corporal
OR-3 = British Lance Corporal, US Army PFC, USMC Lance Corporal
OR-2 = British Private, US Army Private, USMC PFC
OR-1 = British Private, US Army Private, USMC Private
Why do I care? I work in HR (not for military, for a global company) and it fascinates me to think through how different cultures think about concepts of rank and seniority. The universality of military ranks really surprised me, and I can find traces of similar organization (3-4 man team, 10 man team, 100 man team, 1000 man team) back to antiquity. My theory is it's just kinda natural for our species, like base 10 math.
