That's the point. Realistically, there would be partisans and revolters, but not in the concentrations or quantities to pose a military threat, EXCEPT potentially in the urban centers. If you suppress those urban centers even modestly, any remaining activity is going to show up as small individual actions or isolated bands being a nuisance at a scale far below what HOI models, but certainly not fighting battles. That can easily be abstracted into reduced productivity and/or some form of manpower and supply cost, not as annoying spawns of weak militia brigades at irregular intervals.I don't think that there should be random partisan spawns at all. Major open rebellions should be triggered by the player/the AI controlling the UR cells and by coups. Various abstract negative modifiers can be far more dangerous and far less annoying to the player than pointless random partisan spawns.
I do think that some actual garrison force SHOULD need to be maintained, to prevent the whole country from declaring independence and breaking into one massive uprising, otherwise we'll have a repeat of the tired old wargame formula where countries snowball in an ahistorical manner, rather than stretching themselves progressively thinner with each advance.
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