This post is just for fun. I found these clips of some guy operating some classic stuff at a very high level. From the face blocked out I assume it was or is some Delta force guy or Devgru type. The Mp5 and Sig one at least suggest he is a Seal.

I edited them together in a 59 second clip so as to not be so long it causes the younger among us to lose their attention span. Check it out though.