"We approach it from the storytelling angle." Image credit: Infinity Ward Call of Duty: Modern Warfare 4 is taking the series to South Korea. The campaign starts with North Korean missiles reigning down on a densely packed urban environment, and puts you in the shoes of soldiers in the midst of this chaos. As is tradition, Call of Duty isn't shy about veering close to real world conflicts. The fears around attacks are a very real concern for people living in South Korea - especially right now as the US considers moving some of its anti-missile systems out of the country and into the Middle East . Here's the Call of Duty: Modern Warfare 4 reveal trailer! Watch on YouTube In a pre-reveal press briefing held at Infinity Ward 's California offices, the developers were keen to emphasise why South Korea was chosen as the stage for the next Call of Duty.…