My thoughts --
- The territory conquered FX is short and effective. The drums and the swoosh together tell us that the area has been turned and it is a short signal of triumph.
- The ability acquired FX is effective, but a touch grating on the upper mids (and, if I were not listening to this on low volume I would have recoiled).
- The alien swarm FX is terrifying. I agree with Doug below me; he's said pretty much everything I could have said on this and I would say that of the three, this is your best.
I sense that you're straight up going dark and edgy and horror with this, and these FX do well to inform prospective devs about the direction the game should take just on their own. Well done.
All the very best in the jam!