What about this kind of trick: Blue, on turn 117, breaks through the metro guard and goes down. On turn 121, Red, with reinforcements coming from above, enters the metro, and an attack automatically occurs... and that's it :)
I suggest this:
A RED-RUSH should NOT be considered a battle where the presence of reinforcements does not affect the outcome and losses
or like this:
A RED-RUSH is considered a battle where the presence of reinforcements does affect the outcome and losses
We need to think about elevators and monoliths...