I had two epic comebacks this game.
First one after getting mace rushed by luckywaldo I lost base and had to escape com to water only to rush krow there and soon kill waldo with it.
Second one was when I crashed around 39 minute and spend 12 minutes reconnecting, after which I found hordes of gunships and gollies that got produced during that time, and finished the game with nukes and epic gunships swarms.