Seek Out Tannis
You get this mission for Helena Peirce and are sent to go find Tannis a researcher on the vault.
Tannis Found 0/1
Rust Commons West
It isn't to hard fight your way to Tannis but there is a couple of annoying areas
What you need to do is when you get to the area where you are led in your car and cannot drive any further go left.
You will run into quite a few bandits take them out and when you see a bridge find a way to get there.
Cross the bridge and you may run into Rakkinishu.
Rakkinishu is similar to Mothrakk but if you can just ignore him.
Once you Get to this slanted curve going up head up it and just follow the path you will see a house in there will be Tannis.