Force protection is a good point. There definitely is a theme amongst support trades that I disagree with, I assume it came from the years in Afghanistan, that "if I'm shooting my weapon, all the combat arms types are dead and the war is lost and we've already gone home."
I don't have much experience, but most still wearing the uniform don't have much experience in conventional, peer-to-peer warfare either. In that setting, with a mobile Brigade Group, there is not a plethora of combat arms types hanging around the Brigade Support Area or securing Brigade HQ as it jockeys main and second, or securing commodity points, etc. There is certainly not enough to go around, ever, as the Brigade Commander needs all of his fighting troops in the fight, not doing menial security tasks because support trades have spent too much time saying "well the Infantry will provide security" and not enough time training soldier skills. Every Infanteer sucked out of the fight to do Force protection in the rear is a serious consideration, we do not exist to pull sentry shifts for other units who can't be bothered with that soldiering stuff.
When I was a Pl Comd on Maple Resolve 14 (helmets on [
), my company was attached to 2 Svc Bn. 3 platoons were not nearly enough, and we often found ourselves attached to 1 RCR, or to Bde 0, or to this or to that. We also had our own stability ops to execute in the destabilized rear area that had just been run over by a Brigade on the advance (Exercise scenario, of course). A lot of people in 2 Svc Bn learned real quick that there was more soldiering to their trade than they had realized, and that included manning gates and OPs, digging trenches, pulling shifts on sentry, building obstacles, and yes, responding to EN fire as it harassed the BSA most days and nights.
(Helmets off) Again, this was an exercise, but it did a good job exposing a lot of weaknesses in 2 CMBG (and there were a lot, for all trades, including the combat arms and the infantry). The little blurb above though, is relevant to this thread.