Dark Sector has so many similarities to Resident Evil 4 that it could be seen as an expansion pack for Capcom's classic. Firstly, the plot focuses around a city infected by a disease. The infection, like RE4's Las Plagas, turns regular folk into murderous zombies. There's a shadowy figure attempting to create an army with these creatures. Then there's the female double agent - she's like Ada Wong, minus the sex appeal. And there's even a blatant rip-off of the merchant - a mysterious bloke who hangs around an underground Black Market (more on this later). It's that shameless. But while Dark Sector relies too much on RE4 for inspiration, it's still a solid entry for Digital Extremes, and shows immense promise for their future projects.