New Army "Caliber Configuration Study"

[stanc]

As I read it, [LDAM] will not routinely be carried by dismounted infantry, but will be held back in the support role at platoon or company level...

On what do you base that? The info from Guardsman26 says nothing to that effect.

BTW, how often do rifle squads operate independently from the platoon?

I suspect that your phrase "only replace a mix of calibers in the rifle squad" will probably include something like 90% of the rifles/MGs issued to infantry, so the "only" seems unjustified.

Well, your "GPC" would provide a common cartridge only for the rifle squad, not the platoon, company, or battalion, right?

Seems to me that makes it a Squad Common Cartridge, not a General Purpose Cartridge.