[DirectorTsaarx]

The only problem with building shield-busting mines is that shields are only on during combat. So shield-depleting mines would be useless (outside of combat). If, however, you use mines that destroy shield GENERATORS, they would be as useful as other special-damage mines. Speaking of which, you may want to try combos of engine-damaging, weapon-damaging and normal damage mines. That way, if the enemy sends enough ships through to survive a full minefield, the surviving ships will probably have lost engines and/or weapons...