What did he use to destroy them?
It could have been a panzershreck, but more likely a panzerfaust.
I read a very good book by a French soldier who was in the Waffen SS. He faught in the East and saw heavy combat. I recall him mentioning just how effective the panzerfaust was.
He didn't say. I was 9 or 10 years old and I was in awe of him just having the grit to face a tank much more seven of them. He never spoke of his battles again but I've seen the wounds on his body to know he was in the fight.