Train Simulator 2021 Smokebox UP Big Boy 

Here's another train simulator video of Smokebox's UP Big Boy 4000-1 ( 4000-4019 ) class. This engine has a ton of features and detail that most DTG add ons do not have. This is very realistic engine and has ton of animated features and much more! It is a must grab.
I also apologize for the lag in the beginning of the video when you have more than 1 lowers frame rate
Content used
Smokebox Big Boy
Wasatch grade route & Big Boy
RSC Big Boy