Check again. You may not need Luck to find footlockers, but i believe Luck factors into the generation of the contents. So Luck 10 is far more likely to find a blueprint inside. If you are hunting with a buddy and use radios to call each other in when lockers don't open, let's say the first guy finds a locker and he has Luck 10. He fails to open it so he calls his buddy. His buddy has Luck 1 and opens it and BAM they find a CA blueprint. If i am correct, it's not who opens the locker whose Luck was a factor. Nay, it was he who found the locker as the contents were generated when the encounter first started. That's my theory, only opinion, i am not looking at the code - i think we'd need a dev to say for sure.