Canadian Pacific Manifest With Foreign Power, CSX Train With SD70 MAC

I got stopped by a Canadian Pacific train with foreign power with a Norfolk Southern loco trailing. I spotted an SD70MAC on a CSX train.
Foreign power is when a railroad borrows someone else's locomotives. The Canadian Pacific train had a Norfolk Southern locomotive trailing, that foreign power.
Also, locomotives have various types. I don't know anything about locomotives to explain them
then can have various names/models.