One of the things that bugged me about the last game was the 20 min battle time limit. I can understand this for multiplayer since not everyone has endless amounts of time to dedicate to playing.
But it makes no sense to me to keep this feature for single player in Armada II. I for one LOVE planning things out and using every strategy at my disposal to pick apart the enemy with minimal loss to my ships. Artificial time limit on games really takes the fun out of things for me in skirmish or custom battle.