We are getting Ideas about placing it around the Time period of the fall of Reach

so there might be the flood but no promises.

The Flood would be awesome to see, if you guys can get the idea for the Tech tree system that one of the other users talked about in the main discussion as well at some point that would be greet as well, I would like to help on this one, it's unfortunate that I have no experience in writing code and all that

With the flood, you could Ask the developer of Thrawn's revenge to use the mechanics of the Boarding pods in that mod for it???

maybe

yey

Will there be hero units like Arbiter or Chief, and will there be ground combat?

maybe

will the insurrection appear at all?

Without biting off more than you can chew, the Flood would fit nicely into the Consortium slot for FoC

The game can have more then three factions it's just after 3 factions they have to reuse some elements of the first three. So it doesn't really matter who gets the 3rd slot.

引用自 guinessmadness：

Will there be hero units like Arbiter or Chief, and will there be ground combat?

if they are placing it around the fall of reach, the arbiter we know would not have the title, and from lore would most likely be a supreme cammander, chief on the other hand, eh theres room for debate, we only see him in a cryo pod, during the events of reach, so thats a 50/50, but if noble team would most likely be a hero unit though, and ground combat, while not as exciting as space battles, is still a important part, so i bet they will add it, besides, it would be fun to have a army of elites and grunts supported by a scarab purging the humans off the planet.

If you're using FOC as a base and the setting is around the fall of reach, I'd recommend the third faction just be "Covenant" pirates. Mostly just outcast Kig-Yar and jiralhanae controlled ships/fleets that would fight humans as much as the main line Covenant. The URF would also be a great choice as you could easily justify humans using Covenant tech to fight both the UNSC and the Covenant, and give them a mix of both technologies.

or just use the insurrectionists... they were still around during the fall of reach

As you advance tech the units and enemies could change.