You can also make him climb in the tower.
- Click in the editor "view ID" and find the ID of the tower.
Example : 33751, a tower on Kolgujev, just below the top left corner in sector Fj-63
- Name a soldier (guy) and place a waypoint just in front of the ladder.
- in the onactivation field of the WP :
Guy action ["ladderup",(object 33751)]
If you use a tower addon, name the tower and use it's name in stead of the object ID.