I think that a locomotive addon to the Boston Sprinter map would be realistic and fun. The HSP-46 is probably the more common MBTA Commuter Rail locomotive on the south so it would be reasonable to add the HSP-46
Excellent Idea and furthermore it can fit with a rush hour train pack. My suggestion for HSP-46 has the Avelia Liberty do High speed 240 kmh (150 mph) runs between Boston & Providence while HSP-46 does the commuter pattern. Germany ICE-T & DB BR146.0 UK Class 700 455
I hope the Worcester line will come sometime soon with the Hsp46 locomotive and the bilevel coach’s to TSW 2 in the future.
The HSP46 can definitely work as rather a loco dlc or be featured on a new MBTA route. Either way I would be happy. I kinda think it should be a loco dlc just because you could do a northern MBTA route and have the GP40MC as the base loco. That’s just me though