Probably Confederate infantry attire would strongly resemble British or French kit, to include either the Adrian, or, even more likely, the Brodie helmet.
One imagines that the Union would take its cues from the Germans, or, even more likely, the Russians, meaning either no helmet, or else some version of the stahlhlem. It’s also possible that one might see a distinctive steel hat more akin to the M1, or even a kind of “stovepipe” or “top hat” in steel.
I’m trying hard to think up certain National Advantages. Perhaps Confederate cavalry would be able to execute a kind of blitzkrieg. Would it be likely that a nation without much native automobile production, but having to cover a long border with a relatively small standing army, would develop a heavy emphasis on motorization?
As early as Bull Run, both armies were learning the military value of railroads.
Not quite the same as Axis & Allies but there is “1812; Invasion of Canada”, which is a semi card driven war game. It uses wooden blocks but you could substitute these with “Viktory” game pieces or other miniatures. The game is worth checking out on its own merits, with or without miniatures.
each team puts down a set amount of money. lets say $100 each. thats $200 for the game. the winning team gets the $200. Lets say the axis won. Germany, japan, and italy(if playing global1940) count out the total number of allied territories captured add the ipc’s they are worth and divide 200 by that number. say germany captured 20, italy 10, and japan 15. so 200/45= 4.44. germany gets 20x4.4= $88.88 italy gets 10x4.44=$44.44 and japan will get 15x4.44=$66.6. if each player put in $33 or some sort of equivilant to thier starting ipc’s id say they did pretty well. OR they could just split the winnings 3 ways each player gets $66.6.
Plus you could use the money during the game if you wanted.