Good, Morning/Afternoon/Evening May I suggest that the BR Class 37 gets a sound update. Compared to other classic-BR designs such as the 31,47/4 & 20, the Class 37 sounds outdated. My main issue is the horn as it sounds nothing like a 37's horn and sounds more artificial. 37s are known for their clag so adding a chance for clag when powering up would be realistic and cool! It's clear that DTG can update sounds of a MU/Loco after its released so why can't the 37 get an update? All 3 37 variants in game have been using the same soundfile that was created for the 37/5 back when TVL was being developed. The ROG 37 had potential to have new sounds being a more modern 37 but no. It would be real easy to get sounds as loads of 37s are preserved on heritage railways, and many other examples are still on the mainline.
There's armstrong powerhouse too. But it's probably going to come when a route with the 37 releases given past history and a very low chance the old 37s don't get an update since it's also tied to physics if they decide to overhaul the physics.
The horn on the 37 is pony, but the other sounds are quite good. The Armstrong Powerhouse clag and sounds are better though. I've noticed that the sounds from the 31 and 33, sometimes become quieter going from notch 9 to 10.