No, Ben hasn't got them confused - he's using the wording from the lists in Frontier.
If I were you Ben I'd drop the second Sergeant with Cavalry Sabre and buy myself a raw recruit with rifle.
If I remember correctly a Guidon bearer can't use a two handed weapon either so I'd drop his rifle and probably give it to your remaining Sergeant. Get rid of his heavy pistol and then spend what you have left on bayonets for a bit of hand to hand punch.
You'll be playing very defensively for the first few games but once you either get the cash to buy another Sergeant or pick up a couple of 'kid done good' rolls you'll be on your way.
Hope that's of some help.
I never shot nobody I didn't have to.