It's easy to understand why some original game properties merit a sequel. In some cases, the first game is so brilliant that everyone is left wanting more, hence Modern Warfare 2, Bioshock 2 and Mass Effect 2. In others, it's a chance to turn a half-decent...

Essentially built around co-operative play, Army of Two is one for those that long for the days when co-op titles were ten a penny across all formats.

In this modern online age, such titles have the ability to be adored worldwide, even by...