Killzone is set in the near future. Mankind is busy colonising the galaxy when a vicious interplanetary war breaks out between the ISA (which is still loyal to Earth) and a militaristic faction know as the Helghast. Despite the sci-fi premise, we aren't expecting to see any outlandish aliens scampering across the battlefield. Killzone is based on 20th Century warfare, with a total of 21 weapons in the game - again based on modern technology rather than neon-hued lasers - each with a secondary fire function. The term 'killzone' actually refers to a military tactic used to force enemies into an area where they can be easily wiped out.
The single-player game tells the story of four ISA soldiers who are operating deep behind enemy lines on a near suicidal mission. It's thought that the game begins in the immediate aftermath of a devastating Helghast attack. Earlier this year OPS2 was shown a video of in-game action. In one set piece the ISA squad is pinned down in a derelict building and surrounded by the Helghast. Caught in a killzone, basically. To make matters considerably worse, more stormtroopers abseil in from the Aliens-style dropship hovering overhead. Within seconds the bullets are flying and jaws are dropping.
Each of the game's 26 levels will include at least two such show-stopping moments. At the start of the game you will be able to choose to play as any of the four ISA, each of whom has different abilities ranging from a female stealth specialist to a burly heavy weapons expert. During gameplay the other three soldiers will provide fire support. However, to preserve the narrative they can't be killed, but will retreat to safety once badly wounded. Your character will also be protected by an energy shield which recharges provided you can stay out of harm's way for a few seconds.