ORIGINAL: Curtis Lemay
Because there is very real evidence that it doesn't mean that. Specifically, the equations that effect how supply affects combat strength contradict that assumption.
I guess the real question is what does the supply % on the unit screen actually do, i.e.: how is it used calculate combat & movement pts.
Going through the TOAW help files I found this equation:
Unit Combat Strength Calculation
Strength = equipment strength x (2 x proficiency+readiness+supply)/4
Now I'm not sure if this is actually used in the game or is merely for player reference, however it would seem to indicate that supply, rather than being a key variable, is only one variable among others (prof, readiness, equp. strength) which is presumably why a unit with 1% supply still performs reasonably in combat (it's lower, but not 98% lower than a unit with 100 supply for example).
Indeed since proficiency is fixed in the scenario, readiness can't go below 33% (I think) and supply can go down to 1 the combat strength difference between a fully ready unit and a completely exhausted unit is:
Maxed Unit:
Strength = 10,000 (say) x (2 x 80% (prof) + 100% (read) + 150% (oversupply))/4
= 16500
Exhausted Unit:
Strength = 10,000 x (2 x 80% + 33% + 1%)/4
= 5700
I think that's about right? It's about 2/3 lower and can't fall beyond that. I think that adequately addresses the fact that a unit with 1% supply won't be completely combat ineffective. Now if only Movement points would be scaled to represent that, i.e: a motorized equipment have MP 2/3rd lower when their supply hits 1%. Which I think works out to your avg. motorized unit being slower than a fully supplied infantry unit.
ORIGINAL: Curtis Lemay
That is not true. Unsupplied units suffer equipment losses that represent guns running out of ammo and vehicles running out of fuel. Being unsupplied is very severe in TOAW.
I believe you are talking about desertion effects, from the manual:
Unsupplied units with very low supply and readiness levels are subject to desertion effects. Deserting troops and equipment are lost permanently. They are not placed in the replacement pool. The number of deserters increases as supply and readiness levels decrease, and decreases with higher unit proficiencies. Desertions tend to start slowly (particularly in high proficiency units) and accelerate over time
Not exactly the same thing as running out of petrol and ammo, but I guess it achieves the same result in the end. However if it's a function of supply rather than morale it shouldn't be linked to proficiency.