Engineering wizard builds astonishing rotating Halo rocket launcher that plays the theme

Where to start with this one. Okay: all other videogame weapon builders can give up. This guy's done it, cracked the case so to speak, and made probably the most unbelievable game-inspired item I've ever seen. This is Halo's SPNKR (geddit) rocket launcher somehow constructed as a real and working 'weapon', with rotating barrels like in the game. And it plays the Halo theme...
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