Back in the days when I was with DIVARTY 1AD, we had a Copperhead go unobserved.... Talk about SHTF. Graf was locked down for a few days until what was left of the round was found.
“we had a Copperhead go unobserved.b
I’m embarassed to say that my gunner once forgot to change his index from HEAT to Sabot on a Table VII engagement. It looked like we were aiming for the moon...and everyone at the range knew exactly what we had done.