From: Oslo, Norway
Are the any "special" units, like support units, where it would be better if they NOT dig in and are left with remaining MPs? Like AA, HQs, Supply etc?
Are units given for instance a boost in readiness or supply if they have remaining MP? They didn't do all that so had some R&R?
The manual at 6.1.2 gives a good definition of what units should dig in at the end of a turn using remaining MPs, basically the units that "can act":
"When referring to a unit that can act, we
mean the next land unit in the owning
player’s Order of Battle (OOB) that is neither
selected for combat, Dug In, Entrenched,
Fortified, in either Local or Tactical Reserve,
or out of Movement Points."