1. a weapon type that drains a special type of health a unit has
2. look at the ECM Tank it actualy damages the special health value (not sure about the name i think it was also something with subdual) and the health value also regenerates for every unit but not faster than the ecm tank can damage is
3. afaik you cannot change much about it only make some armor sets get less damaged by the effects that's pretty much all you can change i think
Subdual damage
