So me and a few friends spent hours testing this spot out, and 3 out of 5 of us, all had 2 legendary enemies inside the building, not activated, every time. The other 2 guys only had one. But its an easy kill! Shoot the Sentry bot with 1 bullet and BAM!!!
Sadly we are all above level 50, so I cannot guarantee this spot works under level 50, So id appreciate if you guys let me know if it works!