This is not a matter of severity, it's a matter of who is infected with it.
If the flu shot made military personnel MORE vulnerable, then MORE military personnel would get infected.
And you came to that conclusion by comparing medical personnel to everyone else.
I’m pointing that that isn’t a valid comparison.
Troop are ALWAYS going to be healthier than the general population.
And ‘troop’ are in the age demographic that can very easily HAVE this (or any other) coronavirus and not know it.