Looking for a WinSPMBT

[Walrus]

Mirror battles are the best way to play a possibly unbalanced scenario.
You play the same battle twice, at the same time, playing battle one as P1 and battle 2 as P2.

That way if the battle is balanced heavily in favour of P1...you both get achance of winning it as P1...in the end the level of the win is what matters.
If we play a mirror and As P1 I get a Decisive win against you, but in your go at P1 you only manage a minor win ...then overall,,,,I win :-)

The best use of Mirror battles is assault or advance.
Being a defender can be quite boring sometimes, and in one-off battles players tend to play Meeting Engagements for exactly that reason (and to give both players a chance of victory).

Mirrors need to use exactly the same map, same armies and force values and preferably the exact same flag positions...and the main thing...to be played at the same time.

Playing them sequentially never works as well. Too much knowledge of the map before battle 2 starts will unbalance the two battles.