Castrum Novum H-1 spawn system

[Fadigre]

Hello world ~

So, I'm playing about in Castrum this weekend!
It's been a nightmare however, the Magitek Vanguard H-1s have a bizarre spawn pattern!

So far I've managed to figure that past the first gate there is a H-1 Vanguard from 7:00 and de-pops at 19:00
The second gate has a Vanguard from 13:00 onwards. I'm assuming it de-pops between 19:00-1:00

The third gate (where the Level 63 Vanguard lingers) seems to be 19:00+ although this is unconfirmed as of yet. What I do know however is we have only had a kill in this third area at night.
This H-1 also seems to be relevant to the two Vanguards that spawn in this area. I haven't seen a H-1 spawn without there being a standard Vanguard there initially.

I'm unsure if the killing of the first two Vanguards are relevant to the spawning of the Level 63 or not.

Has anybody else explored the ins and outs of the Vangard spawn system?


<Super edit> Just had a H-1 up for the entire in-game day. What does it mean? Who knows!