I would also agree with getting flaming cliffs 3.
good starting point, basic aircraft knowledge, how to read instruments, utilize each aircraft, etc. even the "basic modules" are alot of self teaching. the su 27, su 33, and mig 29 all have similar radar systems if im not mistaken( correct me if im wrong) and the f-15 radar is another one that takes time too. no manuals. i would recommend you tube cause the guys who post tutorial videos on there have the experience and knowledge on how to explain the use of different functions and how to effectively use them.
the f-15 is awesome, but the sukhois are pretty awesome as well.
campaigns are fun, carrier campaigns for su33 are sweet.
flaming cliffs, if used properly, is a teaching tool for how to actual produce when you get into the detailed flight cockpits. im still kindergarten with the f-18, but unfortunatley the warthog hotas, track IR,and rudder pedals have sunk more of my time into the f-15. been playing collectively for two years, just got the hotas, and man does it make the difference.
hopefully i can learn how to dog fight here soon, the right way. mastering radar systems first though is essential. without it your blind.
have fun!