The E483 is a bombardier traxx locomotive which is used in cargo services between states which haven’t the same electrification (Italy-Austria, Italy-French, ....) E483: https://images.app.goo.gl/XZL6FcbvCmbC66oj8
TSW already have TRAXX 2, (in DB paint), TSW just don’t have Mercitalia Rail TRAXX and italian routes where that can fit
This is the problem, DTG has got only Germans, UK and US routes where they can fit trains. They even don't pay attention to the France. In TS they developed a lot of french routes.
In the first Mercitalia work in a part of south of Germany, and for second there is just one French route + the extension made by DTG