Queeg wrote: are (1) the huge size of the Union army at the outset of the series of battles (150,000+ in 1862!) and (2) that the AI fought its army to destruction instead of retreating.
We need to be careful of jumping to conclusions too quickly. Ai armies might be too large because it is forgoing purchasing historical naval units and other items.
That would mean the AI needs to be tweaked to spread its purchases out among other high cost items, not a reduction in the Union economy.
Also most historical accounts of battles give figures for the line troops that fought, things like medical trains, supply trains, etc. are not included in the total army counts. This game counts everything, so we need to discern between combat formations and support formations when determining the size of an army’s manpower. 150,000 might only be 80,000 combat troops when you have 50-80 supply wagons in the count.
Jim