Cold camp is like a stake out than? Were you overseas? Marines? Undercovers?
I was USAF. I was working with Air Rescue in an exercise - opposition was looking for us, heat, fire, smoke would have been an arrow pointing to us. So we were in a cold camp. No light, no fire. Eating rattlesnake was a challenge to those of us that weren't Air Rescue - we were playing shot down pilots and they wanted to see how far they could push us. Did so well, they kept inviting me back for other exercises.