Well you finished Tour 14 (MFC0014) so to continue, join tour 15. (Go to Tour Center, scroll down to MFC0015 SIRP Petersburg Exploration) select details, choose your aircraft and join the tour. Once you have done that, Leg 1 of that excursion will open up for you. (Once you complete that leg, then leg 2 will open up for you.. and when 2 is completed, then leg 3 will populate and so forth Buddy until you have flown all the legs for that excursion. Then you will be able to continue in excursion 16. etc etc. You have lots of flying to do!! lol. Like there is 46 excursions (so far) plus 715 single flights that can be flown so you won't be running out of flying material for a very long time.
Norm