Coms between armor and infantry

[PJMaybe]

In a battle I was in recently I noticed a half track began retreating when it was not even under fire and had no visual on any enemies. However, just ahead of it there were a couple of units who could see an enemy tank rolling up the hill toward them.

It could have been the infantry shouting that notified the halftrack, or it may have been that the halftrack could hear the tank approach. Either way I was very impressed and my halftrack was saved!