Part-Metal Gear, part-XCOM, part-successful.
Good intentions and clever planning only win you half the battle. None of that means anything if you can’t deliver the goods on the day. An agent for a neutral, third-party spying collective caught in the middle of a thinly-veiled Cold War parody, your task is to infiltrate the bases of the US and USSR in order to stop either side from nuking the moon. Because nukes are bad and the moon is awesome.
Each 2.5D, randomly-generated stage contains up to four of the 20 pieces of the intel required to interrupt Armageddon, so depending on which missions you tackle (you always have a choice of one from each nation), you could ‘finish’ Counterspy in a few hours or a couple of days.