Pre-M V120 feedback & bugs

Aaand go!

Lots of changes, including a fairly massive shift in howitzers.

Todo for next build:
investigate a nerf for soviets
look at infantry logistics drain (perhaps too high)
examine howitzers accuracy/suppression/cost (command and logistics)
decrease command value of logistics (increase storage in storage buildings)
look at infantry supremacy? (light vehs oddly not counting infantry swarms all that well).

major bug: soviet spawn is still borked, needs fixage so they spawn with the rest of their units and not just commissar.