I was with nirvana when we saw this event. We both said on range that it looked like he dropped troops too low. The goon was barely skimming over the town and troops were parachuting out. The chutes opened as soon as they came out the door.
To both our suprise when we got close enough to the troops they were running. 8 had already gotten in from a previous drop and we were unable to kill enough of them before they made the captrue.
no there was no second goon, and troops were down at the base spawning in for some time, so no M3 was present. it was the troops from that C47.
My first thought was it had to be some wierd lag that we saw his goon low and not where it really was. It was just a very odd thing.