Year of the Rat

About Year of the Rat: Vietnam, 1972, from BoardGameGeek:

Year of the Rat: VietNam, 1972 is a two player wargame simulation of the documented operations during the 13 weeks of the Communist Offensive in the Spring of 1972. It includes the historical game and two optional games that play with Variable Order of Battle or Player selected deployments. 200 counters NOTE: One of the very few (only?) Vietnam wargames ever published (in multiple, hard-copy formats) in the same year during which the conflict occurred. Strategy & Tactics magazine #35, and stand-alone flatpack editions were both released.