[Q]

The more tests I make the less I understand it:
If I have two weapon platforms on a planet one with combat sensors and one without, the hit chance for both are equal! And if you compare it to one single weapon platform without combat sensors it seems that the combat sensor is effective for both platforms.
If I have an equal fighter group of ten each, one group with ECM and combat sensors (max tech level) and the other without, the hit chance for the first group on the other is 1% and for the second group on the first one 10% if the are on adjacent squares.