me and my friend were in game chat and over heard people talking about a multiple gun glitch they were explain it and so me and my friend tried it in private match and it works. (there is on con about it though you need a assault drone)

Steps: First you get a assault drone (if you ever played world at war zombies its like the bouncing bettie glitch on der rise)

2. stand over a weapon on the ground

3. what you do is take out the assualt drone and as soon as you take it out hold (x) and pick up the weapon on the ground

this works beleive me if i could find a way to post the vid i would... it might take a couple tries to get good at it but i thinks its a pretty cool glitch