I also go this one in “The Choking Grounds”. The challenge where you have to kill 30 enemies with finishing moves. The first four are the duskbats, it took me about four tries. The fourth one would always fly to far to get the fifth. Jump and do the
move to do an instant kill as you are doing the move swing your camera to the next and push on the
to jump towards it then hit
again close to it. Keep doing that and more should spawn before your done with the first four and with some luck they will have moved close to you.