Targeting coordinator
While in the lock on stance, every friendly T’au ship within the ship identification range has the accuracy of its rail guns enhanced to exceptional Accuracy

Applies to T’au escort ships.

Does the Benifit apply when the escort is under the lock on even if the line ship is not? Or does the line ship benifit if it is under the lock on order even if the escort is not? Or are both vessels required to be under lock on for this effect to take place?

Cheers to the English language....