On the speed maps, the 36h cooldown for leaving a coalition is simply WAY too long... on 4x, it is actually six in-game days; in other words, a lifetime. I think it is the only thing that was NOT divided by the speed factor, but it really should be... I've had several cases where the only reason a map didn't end was because one of the intended coalition partner's cooldowns didn't end yet, and everyone is just standing around waiting for that to happen.
When the enemy is driven back, we have failed. When he is cut off, encircled and dispersed, we have succeeded. - Aleksandr Suvorov.