I bring today another homemade rule that we use in our group, along with the nanoexpansion, to give submarines the opportunity to have a more historical behavior: economic war units difficult to eliminate; as an alternative to the typical behavior in these games of offensive fragile unit.

To do this, in addition to their usual combat mode we add to the submarines an alternative mode, which can be represented either by an additional row or by turning down the submarine counters when choosing mode, which they can use to try to evade in combat.

Submerge mode

In this mode the submarines do not generate any attack dice but have two dive boxes instead of one.

Greetings