I am doing it this way for this route: there were only consists for Intercity and Gravel in the Gotthardbahn preload folder. And only 4 different trains all in all.
But i’ve made over a hundred consists myself during the last months, and i made some new ones with the Re460 lok too. Both DB and ÖBB are driving freight trains on the Gotthardbahn so i could enable a lot of my consists made for German and Austrian routes.
My home made consists use the following categories
Regional
Intercity
Coal
Gravel
Oil
Container
Scrap
Nuclear Flask (for single engines)
Costum 1 (for very long freight trains)
Costum 5 (for freight wagon only loose consists)
Costum 6 (for person wagon only loose consists)
The reason i use that many different categories is that the random algorithm consist picking in TS is not that good. So to make sure you don’t see the same train too many times in a qd you can not only use Coal for freight trains, like RSSLO do. Use more categories and TS gets better at random picking consists.
For my public version of the Gotthardbahn Real Drives the rwp will add a preload folder with more consists than the 4 Rivet Games delivered.