Cool map. It brings real perspective to an actual historical battle, which is awesome. I feel inspired to design some specific battle maps now, myself.
My criticisms are primarily aesthetic: - The thick brown lines look a lot like roads, or maybe walls. This is confusing since there are dedicated territories that serve as roads, making them redundant. If they are walls, they don't appear to block anything, making them without purpose. I suggest getting rid of them or making their roles more clear. - Pickett's Charge 1 should not connect to Pitzer's Run East Bank - Also, it should be Union "Artillery", not Artilary - It should be Along the "Tracks", not Tracts - You've got an extra "s" in Middle Harrsisburg Road