I *think* I saw this happen once but it was long ago ( we get to say that and mean it since the games are 20+ years old now ) and IF I'm remembering it correctly I was surprised because (IF I'm remembering it correctly........) it was a tank firing smoke to block LOS from the enemy to a friendly unit
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"You are never to old to rock and roll if you are too young to die".--- What do you expect to be doing when you are 80?