Only thing I frequently "regret" is that Kitin don´t hunt other "predators".
But that is the downside of the "simple" mechanic of "hunter vs. hunted".
I´d be much more "realistic" if the Kitin would devastate everything living in a swarming/invasion and not simply "concentrate" on waiting to be attacked by Homins out to get them.
To me its always a bit weird to see herbies peacefully grazing and/or "other predators" going on with hunting as if nothing out of the ordinary had happend, right next to where we´re fighting for our lives in an invasion.
CU
Acridiel