Not sure if any of the rules are confusing…one might get confused trying to remember which ones apply to Revised and which ones to classic…
Personally, I’m still trying to learn the value of Artillery. I like the house rule we used to have, Artillery cost 3 IPC, attacked on a 2, defended on a 1…it made them simpler to use. Now they just do too much to mentally calculate for me. I’ll get the hang of it, maybe you’ll see me with huge stacks of inf/art instead of inf/arm one day…
My personal favorite rule is the 3 defense armor! It took a while to get used to factoring in that change, but wow! It sure makes life easier! Suddenly armor are worth it for Russia.
My second favorite is the ability to put any mechanized unit with an infantry on a transport! 1 Arm, 1 Inf is much better for island hopping hten 2 inf were!!! (Inf/Art works well too, but as I said, I’m not big into artillery yet!)