Can you say something in UTM?
Many many years ago, I flew practice CAS missions in the Central European Buffer Zone. The Forward Air Controllers would always give the target coordinates in UTMs. We would always reply Lat Longs.
In today's fighters it is all done by data link.
“The Forward Air Controllers “
I worked with a guy who was a FAC in Vietnam. It was some slow plane. He said Viets would target the FAC because if it was shot down, the air attack would end.
I always admired that guy.