Developer EA Montreal has announced that a new co-op mission will be released for third person shooter Army of Two: The 40th Day as part of a downloadable content package titled ‘Chapters of Deceit’.

The package, which will be released on the 1st of April, will be priced at $10 or 800 Microsoft Points (roughly R75) and will have characters Salem and Rios “stumble upon information that could lead to ending the invasion by Jonah and his 40th Day Initiative army. However, they quickly learn that everyone is out for themselves and to trust no one but their partner,”

Army of Two: The 40th Day was released in mid January 2010 and has enjoyed a generally positive reception. Currently it holds an aggregate Metacritic cross platform score of roughly 75%.

‘Chapters of Deceit’ will be released on Xbox 360 and PS3.