As a side note about these old units - one of my most fun memories of TSW2 is getting stuck on Clinchfield, the manual being no help, the tutorials failing me, and throwing my arms up in the air and downloading scans of old EMD engineer manuals as pdfs which filled in the missing information I needed on their correct operation and got me actually moving.
It would certainly be nice if DTG invested in creating documentation. But they definitely deserve props for simulation quality if you can download original manuals for the actual equipment and it works in the game as written.
Also applicable to Cajon Pass ATSF F7 version of the expansion pack for TSW 3. what DTG can do is combined F7 CSX Clinchfield and ATSF BNSF F7 Manual for those that are not used to the EMD F7. The first locomotive I used without an instruction was the Clinchfield SD40 on Sand Patch Grade since it has weak dynamic brakes
