All Hunter 6 units are stealthly and equipped with counter measures galore. As a result of this, before any unit may attack a Hunter 6 unit, it must first spot it.
To spot a Hunter 6 unit, use the following table:
Once spotted, a Hunter 6 unit may be fired upon as normal. Note though that each attacking unit must make a spotting roll to be able to fire upon the Hunter 6 unit. This is due to the fact that while communications will allow all units to know the general location of an H6 unit, they still have to be able to spot the unit to be able to fire upon it.
Units which have the EW abilities Target and Spot, may use these abilities as normal, provided the EW unit has made their spotting roll. If they can't target a Hunter 6 unit, then they can't pass along their information. With the Targeting ability, the firer still also has to make a Spotting roll.
An example:
Suppose a Neuspotter is 4 hexes away from an undamaged A.S.P suit. Between the two units lie one hex of forest, one rough hex, and two clear.
The Neuspotter needs an (10 for automated unit, -2 for the forest, -1 for the rough, -2 for the undamaged A.S.P) 5 or less on 2d6.
Flying units do not need to be spotted to be shot at.