I am not sure whether this will be picked up, but the comments on Steam from our German friends is the sounds. I know, in TMLs eyes these are the authentic sounds but, please take a listen here.
There's variants in these buses, DL05, DL07, DL08 and DL09 why no DL06 I don't know.
I know they say Kickdown but that's the characteristic of Voith, also one thing that is bothering me with this is the mechanics of the buses. The reason we compare to OMSI is because if you know, each segment of a bus script is seperate just like the real thing, there is no bus plugin, each script is for each component.
Cockpit (Dashboard, Switches, Gauges etc)
Gears and Engine have always been hard to get because the gears are interlinked but there's tons of Voith sounds out there.
I know your time probably is limited in development so hopefully modding tools means we can correct some inaccuracies. I left the discord because of the way I was spoken to. But can't hide from the comments on STEAM, we all want authenticity, it's a very good simulator, the nearest to authentic is the Scania. The indicator sounds for the MAN are from the Scania, which isn't true in real life. If this is 1:1 scale, the buses need to be true to life sound.