Siege Towers

[emv1300]

I need some help with creating siege towers , i want them to transport units and take them to the walls(cliff) and unload them on the walls OR make the tower go to the walls and then make units go in its direction and when they are in its range teleport them on the walls . I'm not that good with triggers soo if anybody can help me that would be great
Another ideea is to make a small walkable path infront of the tower when it reaches the wall and make the unit walk over the wall but as i said i dont know how to do that

 

[FlameofChange]

Use the transport abilities of ships, with a bigger range. The only limit is that you can't transport more than 10 units at once. You can get inspired by how transport ship's abilities are.