I disagree with the Zone of control issue. The PPS-15 radar teams are not meant to engage the enemy - but are meant to find the enemy. Their direct fire capabilities are too light to manage any possible engagement, even in self defense. I recommend not putting Zone of control in because if the unit is being used correctly it would have time to move out of the area before trouble hits it. What I would recommend is setting it such that when its hit points reach one that it retreats like that of the cavalry. Because when they are expected to get into contact they will use all available resources to withdraw from the battle.
(From someone who has had to withdraw on an occasion or two)
Stay alert, Stay Alive!
One more thought. Will this unit have an increase in range if positioned on a mountain? Another thought would be that in forest, jungle, and through mountains its range would decrease, but in plains and desert its range would increase. Too many variables I know but for information purposes . . .
One last question. Does the AI use it? If not. . . screw him - his loss for not being able to understand the importance of this great unit. haha