Kerosene, Tar and ♥♥♥♥♥♥♥t

[Seijana]

So my friend and I, we attempt this mission three times. Each time we jump on the train rather than stop it, kill the pinkerton scum, then on the three different tries we have tried hijacking the train, killing the driver and leaving the driver respectively.

Each time we enter the tunnel on the train, mission failed. No explanation, nothing seems to make a difference. What the ♥♥♥♥ are we doing wrong here?

[AK-105M]

If the train enters the tunnel, then the mission is failed. To stop the train, one of you must tie the other and put it on the rails, wait for the stop, then release the bound one, interrupt everyone, one leads the train, the other behind the machine gun, and so on.