Unlike most native races, the scavenger hive worlds have no prebuild buildings (either farm or factory). Intentional , or oversight? Admittedly it is rather funny to colonize the world, have immediate starvation because of it, and have it revolt all in the space of a few turns... Then to bomb it clean and recolonize it.

The unruly races such as the Scavengers and Gaiads need some more work before they really makes sense within the game world.

I remember the scavengers used to have a factory on their world, it seems to be gone now, balance issue?

I don't recall that.

Yup, when you got a scavenger world you would wind up with between 1 and 3 factories. Made it sort of a mixed blessing. Now though, I just let it revolt and extinguish them...