Why are there no diesel switchers (ex/ EMD SW1000; EMD SW1500; EMD SW900; ALCo S1; ALCo S2; ALCo S3; MP15AC; MP15DC)?
For that matter, why are there no steam switchers either (ex/ 0-4-0; 0-6-0; 0-8-0)?
Are they available as free downloadable content?
If there aren't any of them available for...