ADD: Unit definitions can now include a player_squad_size field that sets a custom player squad size for that unit type
ADD: Campaigns can now optionally set enemy air support levels that can change between combat weeks, used as an additional check during enemy air attack
CNG: Revised the system for spawning enemy truck units for a Convoy Attack objective hex, should now always spawn required number of truck units
CNG: Rescue units now much more likely to try and dig in if possible, and very unlikely to move around the map
FIX: Description and introduction date of the M3L
FIX: Units with a single attack (which must withdraw after attacking) will no longer be spawned as rescue units
FIX: Removed unit definition for the L3/35 (HUN), which was already replaced with 35M Ansaldo (early)
FIX: Code typo where terrain types with a generation chance of 0 might still be generated on the Campaign Day map
FIX: Terrain generation on the Campaign Day map is now much more accurate to the intended weighted odds for each terrain type (thanks sparksflyupward!)