They were action figures that traveled on zip lines and you could hang them up on things and make the men and vehicles travel over the zip lines. This would have been early nineties. Please!! Help me.

Is this it?
Amazon.com: Batman Missions Masters 3 Highwire Zip-line Batman Action Figure: Toys & Games
Amazon.com: G.I. Joe Urban Camo Infantryman 12" Action Figure: Toys & Games

No that's not it. This is a toy from the 90's. It is not batman or anything else. It was its own brand or series. Something like sky rangers, or something.

Sky Commanders. Thank you for reminding me of this excellent series of figures.

Action Figure Archive - Sears Catalogs

The previous link was incorrect (sorry I am doing a lot of research tonight. Enjoy the eye candy.)

Here's the link for the Sky Commanders catalog.

Duke Nostalgia's Sky Commanders Page