So, get this. The Taken are basically normal enemies stripped from our dimension, and brought back as corrupt savages.
It looks like a majority of our standard enemies will have a Taken form. Cabal, Hive, Vex....
Wait, Vex?
The last I checked, the Vex were organic robots that all shared the same mind. They can also travel through time.
So, how can the corrupt the vex if they are mechanical and all share the same mind?
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Taking them and corrupting them wouldn't be difficult for a hive God. They'd get knocked off the network, as it were, and form their own taken mind (if there's anything left of it...)