I don't know exactly how it happened, but I clicked over a locked map location on the right menu and I entered that location, the target range, I have unlocked the location right above it, the Burger Ping. Great game btw!
@R0sh The first guy is immune to stun, that is the heroic area, so better try it out at level 80. For a rogue the first guy is the hard one, the rest are easy at lvl 80.
Just completed it on hard.
Drones and main gun at Max, 12 fighters spawning fast and not even one cannon.
12 fighters distract enough to get the main gun to do the job. Cannons waste too much money and drones time on repairs.