Seems to be an ever popular topic.

When it comes to debunking a "myth". I'll take the words of the guys that were actually there with their lives on the line over those doing the "debunking".

Check out "Last Stand of Fox Company". It discusses the problems with the M1icon carbine and the Chinese troops clothing in some detail. As the solution was to shoot them in the head only, it is apparent that the problem did indeed exist.