I watch my commdants, level 20ties, move away most of the time when Air units are attacking. The commandants didn't stand there ground and fire back but kept moving away as it was being shot at like the other unit that can't fire at air units. This doesn't happen all the time but you want them firing all the time. I don't have to see "visual graphics" of them firing but seeing them moving away until destroyed from air attack is all I needed to see.
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