Wikipedia
Kombrig is the abbreviation to Commanding officer of the brigade ( / Командир бригады; literal: Commander of the brigade / Brigade commander), and was a military rank in the Soviet Armed Forces of the USSR from 1935 to 1940. It was also the designation to military personnel appointed to command a brigade sized formation (X).
Until 1940 it was the fourth highest military rank of the Red Army, and might have been rated OF-6 in NATO ( One-star rank). It was equivalent to Brigade comissar (ru: Дивизионный комиссар) of the political staff in all military branches, Kapitan 1st rank (ru: Капита́н 1-го ранга) in the Soviet navy, or to Major of state security (ru: Майор государственной безопасности). With the reintroduction of regular general ranks, the designation Kombrig was abolished, and replaced by Major general (OF-6).