OOC:
Rusval - Since Vex took the
Redline strategy you did not get a bonus to your attack. Normally, and in the future, I would ask if you wanted to use another AD on the roll. However since Vex rolled a natural 20, that reduces the Lead by 1, and won his opposed check with the Lead advantage applied from
Redline the Lead has been reduced to 0 and you are Victorious (meaning you have caught the train).
Options (Boarding the Train):
Rus - If you want to use the grapple gun again it is a ranged attack against DC 20.
Vex - If you want to use a grapple gun, Rus did have Dozer throw and extra one in the back (though this version does not have the wench). Same deal, DC 20 ranged attack. Then a DC 20 Athletics/Climb check to climb onto the train.
Rus/Vex - Or you both can make a Acrobatics/Jump check against DC 15 to jump onto the train.
Vex - Complusion Subplot. Jumping onto a moving train would trigger Sebastian's adrenaline junky compulsion. Fortunately he made his Will save to resist. Unfortunately (or fortunate depending on how you look at it) I rolled a natural 20. So he is immune to his Compulsion for the rest of the mission so if anything else would have triggered it he won't get credit for the success he might have got. Sebastian is now down to 9 successes to complete the subplot.