I dont understand let me quote :
"Announcing Lock On: Flaming Cliffs 3
Lock On: Flaming Cliffs 3 (FC3) is the next evolution of the Flaming Cliffs series. FC3 features the F-15C, A-10A, Su-27, Su-33, MiG-29A, MiG-29S, Su-25T, and Su-25. FC3 aircraft provide an easy learning curve for new players and focuses on a broad range of aircraft rather than a detailed single aircraft. FC3 adds a number of new features and improvements to previous versions of the Flaming Cliffs series. FC3 is a module of DCS: World, which makes it compatible with all other DCS: World titles like A-10C, Black Shark 2, P-51D, and Combined Arms."
It says Su25T doesnt it? So the Vikhrs is part of FC3 aswell as World. World ones are different from FC3 or not? Confused here