Well... how it all started... The story how the martens meet for the first time, team up, defeat the Hyleuzun Syndicate and become MSG unit 57 could be too complex for a DC adventure, I think.
The problem is that there are at least three different points of view from which the story should be told... But... perhaps. Otherwise, I will probably show that story in web comic in the far future...
Rise of the Insectoids will, however, reveal Jakob's origin, introduce Tayra (who will be the main character in 'Hide and Seek'), and also throw some light on other characters known from "Friedrich's Revenge" and "Praeludium".
There are three or four other short prequels I could do: "Pugnator" and "Penthesilea 2" (but those would mean a lot of science-fiction-style walls to do), "Streak", I think that could be done more easily, but it would include steering a huge robot, which then would mean a complete set of new walls (a forest in diagonal-look-down perspective), and "You are out" (Die Hard variation which would also need a lot of new art - rooftops, for example...). With "Rise of the Insectoids", I chose the one which would need the least new art.
Ah yes, "Friedrich's Fault" is also still lurking somewhere in my mind.