yep. nice. however that's a very old feature. you can choose how to launch missiles by aircrafts. in lua. at pylons. i.e. you can define rail (instant ignite) or ejector (toss and ignite) launch. that Su-27 missile has been launched by an ejector
FYI: for example the F-15C wing plyons definied as rail pylons (#1, 3, 9, 11) but the fuselage pylons definied as ejector pylons (#4, 5, 7, 8 ), just like IRL