NowGamer: Brilliant. Mesmerising. Generic. Grey. Dull. Electric. Vulgar. Lacklustre. These are all words that have been used to describe the Killzone series at one time or another. But, if there’s on thing the whole world is largely in agreement of – if not whether any game thus far in the series is any good – it’s that, visually and aurally, Killzone has always represented the generational zenith...