Check which control scheme you are using. If you're using the classic controls (which some scenarios ask you to), the railfan shot will be holding down square. Also note that DTL railfan shots can't be made from inside the cab on consoles.
Thanks for your reply Nick, I was in exterior view, I have tried holding square as per old way & nothing, I've tried hold right stick & d pad down & nothing, I looked at the controller settings & it said square too, very odd!
Hi, I guess you are keeping the R3 pressed in when pressing down on the Dpad as the R3 is not just a press it is a hold in.
Or maybe you are not pressing hard enough on the down Dpad because with me if I don't have the R3 pressed in it takes me out of gear into neutral.