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Co-op missions
From The re-PSUPedia
Revision as of 12:30, 17 February 2012 by EspioKaos (talk | contribs) (→Neudaiz: Removed Cost of Research since it's no longer a co-op mission.)
Co-op missions are missions which are very similar in style to free missions, however they contain some elements of party missions. Even though co-op missions can be initiated by a single player, they require more than one player to complete with a grade of S due to field elements such as multi-person switches which open doors leading to additional enemies.
