I couldn't find the official topic, nor the manual. So I ask now. I entered the kvatch gate with Oscuro overhaul and I found dremora attacking clannfear etc etc. I found a topic telling that it should be normal

http://www.gamesas.com/dremora-and-daedra-attacking-each-other-t34976.html

but I want to be perfectly sure.

Ok, at the entrance for the tower there is a dremora attacking a scamp and dieing. Is it normal?

What about the dremora fighting clannfear and w/e?