One of the worst examples of asymmetrical balance is soviets with their AT gun. If you go T1 you lock yourself out of getting the AT gun, unless ofc you have the room in-game to go that route (in which case you're already winning, and it's a case of 'win-more').
Definitely agree with the ideas above that 'Assymetrical balance should NOT be denying one or two factions something'.
I disagree. I think it's an example of a good asymmetrical balance.
If you go T1 you aren't *denied* AT guns. You're basically gambling that you can beat out the enemy with superior firepower and inferior numbers. You give up a fast. AT gun and in return you get AT infantry that can hold their own against LVs. And then from there you supplement those troops with tanks that pick up the slack in AT and AI.
OR if you realize that you're not going to ne able to do that you still get the option to build T2 and get an AT gun.
I think that soviet's choice between T1 and T2 start is GOOD asymmetrical balance.
Things like how OKW originally had no nondoc MG or how USF has no nondoc rocket arty are the big offenders.