Apologies if this already posted but can't help but think this is a hint of something that might be in the pipeline for Spirit Of Steam, or maybe even an all new steam route...
Certainly could be (once they've fixed steam). I never realised these things were built in such numbers - 842 Class 5s according to Wikipedia, and even more 8Fs! Every day's a school day!
It’s an old joke from TSC days apparently. Something to do with the sounds from a Black 5 being used for many steam trains in TSC routes. Hence “Sounds like a Black Five”.
To be honest a LMR steam route without a black five would be like having a GWR route without a Pannier tank or fish without chips. It would be nice if/when there is some SOS steam DLC it was something different like a BR standard 4mt or an Hughes Crab although I suspect a black five is the most likely contender.