There are four diesel locomotives operating in multiple-unit train control. Locomotives are from the Burlington Northern and Santa Fe Railway. The freight train consists of 25 freight cars weathered in a perfect way. At the end of the train, there is still the fifth diesel locomotive.
Actually, there are more than 250 videos about model railroading and railway modelling, for example, on Dailymotion and YouTube. Please, visit also Pilentum's Facebook site.