Kevin: I have removed the data above as I can't find the source of my misconception at the moment.
I liked the SMG 9mm C1. Iw was rugged. It worked, most stoppages were bad ammo, not the gun. I could hit falling plates at 50m with it. I could prob outshoot a lot of C8 carriers (I won't call them "shooters" because they never get to shoot). and we didn't break as many in AFVs as we do the C8s.
I would take it over the C8. But, if that is a no go do to the ammo comonality issue, then let's make a proper shorty C8 with a rugged bbl. A Canadian AKR, if you will.
Troopers prob spend more time outside of their vehs than in, whether on sentry, maint, replen, battle procedure, tactical drills or - dare I say it? - rest.
Tom