Aerorailnautica must be real
Trains are very underrated by most people even though they keep the economy running
Train jobs could take forever but have great rewards (like boats)
Trains for passenger jobs could be the F40PH, MP36PH-3C, Class 144, TGV Duplex or TGV Atlantique, 0 series Shinkansen, InterCity 125, 700 series Shinkansen, and the Eurostar
You could make it where the trains have a set livery for different kinds of jobs, kind of like the delivery flight jobs
For freight jobs the trains could be the AC4400CW, ES44AC, SD40-2, GP36, Siemens Vectron, DB 152, JRF EF200, JRF DF200, and the Class 66
Uhhhhh also I think Aero is based on Neo Warfare's code or engine thing and Neo Warfare had trains at one point so this suggestion is not too much of a stretch I don't think





