First of how fast is the train traveling? let’s say its going 45 mph in order to sync with the opening (Door) your trying to jump into you would have to do some location Prediction. Honestly like [mikepurvis][1] said [1]: https://answers.unrealengine.com/users/214/mikepurvis.html Matinee would be the way to go youll be saving a ton of headaches, RockStar did it like that.