Placing Garrison Divs of 1 INF + 1 MP on each VP location is a house rule, oh it's your personal one, but I prefer cheaper MIL for this to save more for the front to secure VPs and fight partisan/rebels initially on their own if need be until the binary CAV gallop to the rescue!
Um, on your preference for how partisans be handled in game as completely abstracted, we that is what the local partisan support/revolt risk is for that you need to employ garrisons to reduce their draining penalties for.