Firstly, let me state that the combat of this event is by no means hard. None of the NM's are bad at all--even the Yacuex which simply requires a bit of creativity (an LS mate of mine has melees use stunning weapon skills while mages nuke it down, mob dies before Haste even wears off).
Even the mobs that use encumbering moves are no real struggle since there is a way to prevent them from using them that doesn't even include Stun. I have to say I really do enjoy the event since it allows such flexibility for what jobs you can employ for it. I've been in runs with RUN's and PUP's, where NM's go down flawlessly and swiftly.
You are probably wondering after reading this far, "What's hard about this event, then"?
There are not enough NM's in the area at one time. Honestly, I think every run I've been in sees more difficulty finding the mobs than they do killing them. Only about 15 minutes of this event is spent fighting. Conversation during this event looks like this:
"Any NM's?"
"Yup! Wide Scan says there's one to the north of here."
"Where's the NM?"
"I lost it on Wide Scan...must be on a different floor."
This comprises the majority of the time I spend in Skirmish III--and there's a feeling of emptiness I get when Berserk wears off while I'm not slashing away at something. And unfortunately, that's how it wears off 90% of the time in Skirmish III.
Anyway, my request to the devs is, would it be possible to look into increasing the number of NM's present in the area? I don't mean by shortening respawn times, because that would be an abusable mechanism. I wouldn't even mind having each mob drop less fenestral fragments or making regular enemies not drop them at all to compensate for more NM's being present. I would rather have the devastating moves that inflict encumbrance be unavoidable than have such a sparse number of enemies present. I don't think the intent of Skirmish III was to run in circles the whole time. Or even putting multiple NM's in the same room and making them all link by true-hearing. (I think other people might just disagree on that last one...)
My tl;dr point is this: Can we have some more NM's filling the halls of Ra'Kaznaar [U]?