He seems to think that use of an M2 is
a war crime.

It apparently is.

I can well remember hearing that use of the M2 against troops is not allowed.
However, use of the M2 against equipment -is- allowed. We were advised to
shoot at enemy troops' belt buckles, as that -was- equipment.

This was done in a Law of War brief prior to us deploying to Desert Storm.

Walt