Thanks for the info,Gooseman.
Very interesting.
I find the naming of the companys and troops interesting as well. Either the military phoenetic alphabet has changed or the U.S. Army isn't using that standard to name these formations. I was in the 2/11 ACR,and our M551 troops were named Echo,Fox and Golf. In the 3/11 Acr,the M60 tank company was named Mike,in the 1/11 ACR is was Delta company. Ours was simply called "H" company.