[Mobhack]

A0 always has a radio.

If he is up front, he risks getting hit with a bombardment. If you have changed him to another unit type like a tank, then enemy planes may decide he is a lovely target to strafe. Losing A0 (except in the human v. human campaign) loses the campaign if you are playing one.

He is not there to be risked, at best he should maybe sit up on a hill, with no friends nearby (like AAA, SAM, arty etc) that may draw enemy attention. On the hill, he can act as an arty observer if visibility is good.

He could be shifted in a jeep and plonked down in the far rear of a mass rout, where he may rally a few runners that pass him by, provided the enemy is not actively shelling the herd of routers.