Can thermal or em mines sensors be used on mines? I just ran a test and it seemed that the thermal and EM payloads jumped out of the mines by themself, possibly triggered by the thermal emissions of the other mines and the EM of the active mines also being tested in the same area. However neither of the payloads actually hit anything, despite the mine droppers only travelling at 7,000 km/s while the payloads had a speed of 29,000 km/s.
The active mines however performed admirably, Each of 2 size 20 mines dropping 3 size 6 missiles at the 4000 ton target ship from 200,000km range, 4 payloads connecting successfully and doing significant damage with it's 10 strength warhead.