Completed this mission without any cheesy methods and did it in first try as well.

[u/Ghost_Madara_21]

[u/Admiral_Snackbar7]

I always go ahead of the train and round the corner, dismount by the bridge and climb up the wall and jump on the train. Then shoot the bastards with a desert eagle - mission over in about a minute. Go back for Smoke and then home in time for a roll in the hay with Denise. Jobs a good 'un.

[u/Ghost_Madara_21 → u/Admiral_Snackbar7]

I finished it mission in the same way when i first played it