After setting an explosive charge to split the train the good guy climbs on to the wagon in front to be met by a bad guy already there. The good guys boss is flying overhead in a helicopter yet no one spotted this bad guy and shoot him.
After falling off the train commandeering a motorcycle then a truck to use to stop the train a dog inside the truck attacks him. The dog did not attach as soon as he got in the truck instead waited until he parked over the rails.