I defeated the scorpion boss after much effort in scorn 2. I have beaten all 3 from the maps listed on the tabs. Am I missing something, it did not unlock?

I have 95 of 97 missions complete and I am level 43 now. There are no more mission available at the moment. I have not done the forrest map, except partially when I get an invite. I will not be doing that second map boss ever again unless it is for GOOD FRIENDS. Lol!

So is that a bug or do I need all missions complete? What's the deal?