Wander ability

[:1]I'm trying to make zombies wander to a certain point on the map at a certain speed. I have no idea how to even begin to do this. I checked the wander skill in the object editor, but that didn't help at all. Any ideas?|||To be more specific, I'm trying to make only one type of zombie( there will be multiple types of zombies) move towards a city, but only a little bit at a time like the wander ability where they move a little and then stop. This way I can have them all spawn in different locations, but all move to the same place.|||Are you wanting them to actually wander? When you say "to a certain point" it sounds like you want them to just walk there, which would be an easy trigger.