There are question marks over the level of scripted events. Guerrilla are masters of setting up the blockbuster set-piece battle, but is that enough? Can Killzone 2 better CoD4 online? The Badge system that enables you to customise character set-ups, creating hybrids of familiar classes such as Scouts, Engineers, Medics, etc. could prove revolutionary. And then there’s the four-player co-op campaign to look forward to. Now that really could be something special.