[Question] Meleeing Prone MG

[DiedTrying]

Yesterday I tried to melee an MGer who was crawling around prone. I'm quite good at meleeing so I know I didn't miss.

But I struck him over the head and body more than 10 times (I had plenty of time) and it didn't do a thing to him (had to put one through his cranium )

I haven't had a chance to test this some more as it's not often that I get that sort of opportunity on an MGer.

Has anyone else seen this?