That is pretty accurate, but I think there is a reason this time around.Historically VP choice has mostly been inconsequential. I don't know this will be any different with Walz or Vance.
Dude is clearly a shitbag and embellishes the truth. I am not sure it stretches to stolen valor to claim he was a CSM as he was was placed in that position, worked it, but left before completing school. His outgoing rank was on his 214 equivalent is E9/CSM, other records/addendums state E8/MSG. He also served as First Sergeant and (Battalion) Sergeant Major, so any of those ranks could also be claimed.