A written description of what I have done:
How what you have done fits into the larger picture:
I've created a simple animation that shows a refrigerator with a pistol hidden inside, with a functioning fridge door that rotates or opens and closes around its hinge. The doors and racks inside are parented to the body of the refrigerator, and both the fridge and the pistol have been appended into the present file where the animation is applied. The gun has a black metal surface, and the refrigerator is a reflective/mirrored white.
How what you have done fits into the larger picture:
In my team's game, the main first-person character has to explore through an enemy establishment, gun down enemies under the pressure of time, and achieve objectives along the way. Whether it's a reward for exploring beyond the linear pathway or necessary checkpoint to proceed, he's going to need to poke his head into places to see what he finds. A refrigerator is a perfectly reasonable place for a pistol in a building full of baddies.
Link to .blend files used in this animation: https://www.dropbox.com/sh/88kvm1y6ou5cle5/XSaiwPP0aT
Link to .blend files used in this animation: https://www.dropbox.com/sh/88kvm1y6ou5cle5/XSaiwPP0aT