Here's something fun to do there...it's the robot racetrack place for those that don't know...
Now I'm not sure if the robots turn hostile while you are killing raiders or not...my first playthrough it was chaos, I had raiders, robots, and a turret all after me...well on my second playthrough I got a clear out mission from Nordhagen Beach, and I decided to sneak kill all the raiders, and the turret...

The robots were still zooming around the track at this point...across the way there are a few more raiders with a couple triggermen...sneak killed them, leaving just the announcer guy (Eager Ernie)...he was a little tougher, I had to sneak up close and killed him still in caution...now for the fun part..

You can hack the terminal (Ernie has a PW on him) up in his 'office' (there's another down below as well) you can control the robots racing around the track...first you wanna release the backup robots, then do a quick save...then set the robots to self destruct...back out of the terminal, you have 5 seconds to get a view of the largest chain of explosions that (I) have ever seen on FO4..(maybe the prydwen was bigger, but eh)...it's like 10 mini nukes going off one after the other...it was epic..

If you haven't seen it, I urge you to check it out..if you have, well good for you, I just did this tonight and had to share.

also if someone wanted to make a YouTube video of it and post it up that would be cool.

I did it. It was awesome. It knocked my socks off, I was so surprised. And a little scared.