Mystery Box Question

Hey all, I was wondering if it is possible to get either the knife or the baseball bat out of the box? Asking so if i shouldnt waste my time with trying to get either of them for the camo grind. Thanks in advance for your time.

By the way the game im asking about is bo6

Edit: Coming back 5 days later to this thread if anyone looks it up later. Although I did not find the knife in the mystery box, I did find it in the lock box inside of the vault