For AAC John K (Sandal_Thong) I've looked at several variants or rules changes to the 1980s version, and I think this one is the key to break the Infantry Pile & Push plan. If you use 12-sided dice then you can double the attack and defense ratings of all units, and tweak the one(s) that need fixing. Specifically, infantry defending at 2 is too powerful, but reducing it to 1 or making it cost 4 aren't good options. Neither is increasing tank attacks or reducing the cost of fighters. So my solution: infantry defence is 3 on a 12-sided die. I did get to try this once, but haven't found many opponents willing to play my variant.