I think you need to distinguish between "combat fit" &
"combat vocation". The SAF uses a medical classification to assign
Physical Employment Status (PES).
Thus, only PES D, E & F can be considered combat unfit in the
strictest sense.
PES A & B are fully combat-fit, with only slight differences in
deployment for operational assignments.
PES C, as a whole, used to be for service vocations but they've
increasingly finetuned it so that previously combat-unfit troops
can now serve with combat outfits, often in combat vocations too -
but not necessarily as frontline soldiers per se. In particular,
the C1L2-graded bunch can be appointed to serve with the Unit HQ or
rear-echelon area, eg. HQ Signaller or camp Medic
respectively.
It's a step up from the days when storemen & clerks were cut
some slack with things like IPPT, but otherwise must also conform
to REDCON capability like the other unit personnel. Not much of a
choice, given the declining national birth rate.
