Oh... If you do, that make them prefer paths through woods, cities and stuff like that avoiding open terrain
I met an armour group on a narrow road running through woods in the East of Cuba - lost 3 gunships trying to take it out. The catch was that the radar didn't acquire them unless you got really close or ran right along the short straight stretch of road. And you could fire missiles at them only from very restricted angle. In such conditions AA guns do their job really fast.
And if enemy choppers were flying CAP along the path of armour movement... Never mind, I'm just daydreaming.