ORIGINAL: BigAnorak
There is a date and distance modifier that may not be shown on the supply screen - one of the developers will have to confirm whether it is or isn't. As it only applies to 1941, I have assumed that it is applied "off screen" but we all not what "assume" did.
From the manual.
20.4.3.2. AXIS RAIL SUPPLY MODIFIER
There is a modifier that is applied to the delivery of supply to Axis HQ units and combat
units based on the date and the location of the unit that is tracing supply. The modifier, once
calculated, is multiplied times the supplies and fuel being delivered to the unit. The modifier is
equal to ((168 + (5 times the number of months from December 1941, but not to be a negative
number)/weather adjustment) - x coordinate of unit)) + ((y coordinate of unit -69)/2))/100. This
modifier can never be less than .33 or greater than 1.0. The weather adjustment is equal to
1 in clear weather, 2 in mud or snow, and 3 in blizzard. So as an example, A unit in Smolensk
(X86, Y51)) in August 1941 in clear weather will have its fuel/supplies deliveries multiplied
by ((168+((0)/1)-86)) + ((51-69/2))/100 or 73/100 or .73. So due to this rule, the delivery
of supplies and fuel to the unit in Smolensk would be reduced to only 73 percent of what
they otherwise would have been. In March 1942 in snow weather, the same unit would be
reduced by ((168+ (3x5)/2)-86)) + ((51-69/2))/100 or .80. This modifier is in addition to other
reductions. This modifier never applies to any unit in a hex with a Y coordinate less than 12.
I'm aware of this, however from the logic of the supply system, this should be decreasing the supply draw of the HQ, not the delivery to the units. Also, isn't this covered by the "Axis Rail Supply" modifier? At least the shown modifier is what one would expect for those coordinates.
