Opening boom gates

[Vietvet]

I have been able to make the gates open slowly but I haven't been able to make them close slowly. Maybe you may have an idea why the gates can be scripted to open slow and closing them cannot be done. Also when they're open, the entities refuse to do under the gates (cross the gates. They would rather go around than walk or drive directly under the boom gates. In case you're wondering which boom gates I am talking about, please check my image. it's the boom gates used to be placed in front of camp and or gate entrances. It is a red and white long pole that goes up and down like a see-saw. Does anyone know how to make soldiers and or vehicles go under the boom gates to enter a road, a camp entrance, etc.? Also, is it permitted to send a short video clip to show what I am taking about? Thanks.

The problem above has been resolved.
I have been able to make soldiers and vehicles go under the boom gates after a few hours of trial and error. In a months time this post will be removed.