I have been thinking about releasing two modes:
one with the normal long cooldown, and one with a much shorter one, to play again.

It also helps because there is much randomness also happening here: the most random thing? it's about whether the 1st fleet and 13th fleet come in time!

And the only way to alleviate that randomness is with escort ships. People without escorts can alleviate that too using shields!

If two modes are released, each mode will be tied to a specific leaderboard!