Sound is also pretty generic, with human enemies making basic zombie - like noises while mechanical ones have no real personality to their audio design. (ludophilelab.com)
Large sections of the game have you fighting human enemies in corridors similar to Uncharted, and with some mediocre AI and visuals, they get boring fast. (metacritic.com)
The lack of depth to the combat system means that fights become repetitive and the introduction of human enemies doesn't really add to this. (thesixthaxis.com)