RP in msfs

Dies anyone else love to RP in air force jets, for me personally I love getting in the standard f18 or even some others I bought and RPing as air force or even just do super fast low level flying; ngl though I do wish I had some people to do it with me think thatd be fun - I do have a question though if im playing on msfs 2024, in a market place jet eg f15, and i joined a freinds game would they see the f15 aswell or just another airliner ? And is that the same for the standard F/A-18