That sounds like something that happened to the infamous Kampfgruppe Peiper. Especially if US Army Engineers were involved.
I can’t say off the top of my head when or where specifically during the German offensive phase of the Bulge that the incident occurred, but yes, it was involving US Army Combat Engineers. It’s been a few years since I’ve read any of my books on the battle.
Don’t you just hate it when the enemy actually fights back and messes up all your plans?!
Maybe that’s panzergrau w heavy build up of mud?
Sorry, couldn’t resist. Did yard work all day so chalk that up to sunstroke
And the Polizei have been defunded.