I have called in dozens of Artillery strikes on Map Coordinates alone. In combat
With me sometimes a 100 meters from where they landed. Talk about 'pucker factor'. I usually asked for a smoke round first..... One with a different color than the other so I could adjust fire. We had two guns. Montagnards on both. Neither one was literate. Simple, "left, right, up, down" worked for me. "Drop 100, Up 100, east, west 100" etc works.
Sure, it's better to use 'mils' and all that other FO bullshit but not everybody operates that way. You're talking about a Unit whose feet are stuck in the sand.
We were a fast-moving, highly aggressive Unit that nobody knew where we were until we told them. Sometimes, even we didn't know where we were. Which was another good use for calling in Artillery using map coordinates.
"Hey Sam. Where da **** are we?"
"Beats me, we was running so fast, I have no idea where we are."
"Cool. I'll call in a locating round about 'here'.
And we'd shoot an azimuth off of that
And I (they) could put a round in your hip pocket from 6 or 7 miles away. In minutes.
I have also called in/worked with Spads (A-1 Skyraider) Super Sabres, Cobras, Puff the Magic Dragon (aka; Spooky) (I swear to God, those guys were drunk) and F4s, which suck. Really suck. And regular Huey Gunships.
The Air Force, it was harder to get their Freq. Fly Boys......
I tried to call in a strike from some 4th ID Artillery 175mm in Pleiku one time, and they were worse than ******* useless. We were out of range of our guys. Which happened a lot.
They had to make sure there were no Helicopters, Aircraft (ours, the Vietnamese and whoever else), Sea Gulls, etc in the air and by the time they checked all that bullshit, we were completely out of the area, running our asses off.
I'm sure that you guys knew/know what you were doing, but you weren't any good to us. At all.
When we needed Artillery, we needed it Right.*******.Now.
Oh, used to crack me up....... When the 4th ID sent out a Company sized unit, or even a Patrol, they'd turn the Artillery in the direction the Patrol was headed in.
I'm like, "Guys, why not just tell Charlie where you're going so he can have a nice ******* ambush waiting for you?"
I absolutely refused to work with regular units. Don't take this personal like or anything, but you guys were a bigger threat to American Troops than you were to the enemy half the time.
I'll settle for the old-fashioned 4 digit maps.
Worked every time. I have a HUGE amount of respect for cartographers. Good at what they do.