I wouldn't advise to actually improve the mines, as usually a hundred small mines is more than enough to do damage on the opponent. It means something like 20,000 damage points, and if your opponent sends in a fleet having more than 20,000 armor points, you should win no matter what.
(Researching mines could be useful in the mods where they are other types of mines on the other hand)
I have myself one or two questions on minefields, after Loser pointed out something to me in our game. How are working cloaked minesweepers under the following circumstances?
1) Cloaked minesweepers are going into an unknown minefield. Do they sweep the mines, do they get destroyed or do they make their way through the minefield without trouble? And what about a known minefield?
2) What happened with a cloaked fleet including cloaked minefields? Same question as above.
Just in case, I should uncloak my minesweepers, but it may be difficult when you don't know where are the minefields.
