Interdiction

[Lowlander]

Ginger, Biggles and Braddock love shouting Tally-Ho just when one unit passes thro another.

Remember this ain't always AFV's gett'in hit, it's a lotta horse transport, trucks, all manner of towed guns and many marching infantry units. I.E. soft targets.
That's why the game has AAA units, of course some people deploy them in the frontline or in large unrealistic stacks behind a mass of armour.

Not that I played many boardgames but they had interdiction tables which give the same effect.