Yup, looks that way. The one time I've done it, the mission marker led me to the core of a raider hideout (there was adhesive all over the place) but the marker was in the ceiling. So I'm not sure if this was a glitch or not (there was also half a skeleton hanging out from that ceiling). But other than that, it puts a marker on your map that you have to travel to yourself. Though It is still pretty cool because sometimes you just need some copper, but are low on caps and have no idea where to start looking. After you send them out it takes some time before they report to you saying they found something, so if you are in a pinch, you gotta be patient. You get a notification if it finds something. If a map marker does not appear, go to the quest tab in your Pip-Boy and select the top quest in the miscellaneous section. You also have to repair the pod sometimes.