What do you do after scoring successful soundtracks for blockbuster films like Social Network and The Girl With the Dragon Tattoo? Well if you’re Trent Reznor, you start crafting music for Call of Duty: Black Ops II. A long-time fan of video games, Reznor has already composed the game’s weighty theme song. In addition, Reznor is spending time with his wife and Atticus Ross finishing their side-project, How to Destroy Angels, and is also starting to dream up some new Nine Inch Nails music…