in, for refrence sake, master of orion 2, you could get a minefield and it would damage ships before combat started, in StarDrive 2 this minefield would be a physical thing on the battlefield, filling the defensive side with homing ordnance that would destroy things like destroyers in a single hit but would rapidly be depleted. Of course in other games like Sword of the Stars there were minelayers that would drop a string of deadly beads in there wake, or the Complex Ordnance Launchers that would fire a cluster of mines where ever it could point.
For all this refrence, keeping in mind only the first game listed was turn based combat and the others real time combat, how would people feel if there was mines/minefields/or minelaying/throwing?