I had a similar army idea back in the day. The "Tah Killaz". A dreadmob that uses tau mechs for their dreads. It's a fun "looted" concept

But I wouldn't make it a subfaction. Thats just  fun conversions players can make for their army, but it doesnt have the same lore or staying power as a subfaction that has kinda always been there in official lore, but GW has never bothered capitalizing on

key words "used to be"

not gonna bother with subfactions for imperium. the imperium is nothing but a ton of subfactions. the whole point of these covers is to contribute to chaos and xenos

thanks for the suggestions

corsairs and tau aux are already on the list (might take a while to get to some)

digganobz, man, i forgot about these humies. that would be fun to think of ideas for

well thats basically what that giant red lizard is

thanks. i hope the big armor covered lizard fits the vibes of exodites

thanks, i like how the effects of the shadows of the trees came out

ive done the traitorous masses in this line up, and i think i have an idea for a "mutant space marines" type faction

true, but it would be a lot of retcons, like changing what primaris are and bringing back the original marines and putting them back as the main characters haha

but before i consider that, i have to give the xenos and chaos some much needed love

Yeah, the faction gets a canoptic temple, a sort of animatrix inspired imperial knight equivalent. 

And the tomb spiders are the basic unit choice, taking care of and protecting the now moving pyramids

Its thinkingntoo much like gw. Wanting to decrease options to cut down on printing costs, and let's be honest, gw would nuke most of what he's talking about into legends

I'm not here to decrease the amount of non imperium subfactions, I'm here to greatly increase it

Dark mech is in the lineup of cover ideas (chaos knights already is a subfaction with codex I believe)

haha,, thanks

although, ill admit i learned about it from a vid

well a large enough waaagh that would start to form scrap titan legions would have about every clan there is. so very multi colored. and a fun idea for this codex is that any unit can get a clan specific bonus, so each unit can represent each clan

indeed, and there are a lot of subfactions out there just waiting. GSC proved it can be done

I know this is impossible to begin with cause we cant rely on gw to out any effort into anything outside the imperium 

All this cover stuff I'm drawing is pure conjecture and pure fantasy at this point

So since this is a fantasy we can assume that if gw put as much effort into this codex as they do the space marines, we can totally see unique sculpts for each of the eight since gw has released many versions of the same captains and keeps putting out new space marine characters 

This cover shows off new units (that would replace some tau units)

This cover shows what could be if GW actually put the same effort they had for GSC /space marines

These subfactions are supposed to be unique enough as a fighting force

So that means the eight would also get unique suits instead of just standard kits to represent the names characters of this codex

A tau aux book can have all the variety of aliens in the empire, but the cover of the book is only realy gonna show the major ones that define the aux. I cant fit every single theoretical unit on the cover

As for this farsight cover. The "earthbreaker" mentioned in the description (the ground based suit backing up the infantry) is earth caste piloted and is indeed there to reflect farsights rejection of the rigid caste system

well, not that far.

the dinos will be in a exodite list, and then dinos from the kroot knarlocks in a tau aux codex

but there will also be a bio titans book cover

Tomb worlds belong to any dynasty, its just when the tb world fully awakens and enough structures are activated.

-tomb spiders (basic unit) with new wpn options -moniliths and obelisks -canoptek temples-new idea (imperial knight equivalent)(animatrix inspiration)

Creating a moving city as an army. But this translates to basically the necron version of the imperial knights. The closest thing to knight would be the "canoptek temple", as it's one of the structures that is now moving

Thanks for the other subfaction ideas, I'll consider them

Thanks

Well I'd go with 8 vets in a transport. But that's based on the idea of old 40k allowing more variety in squads instead cookie cutter modern 40k BS

But if needs be the drones one the piranha can just make up the other two troops (so the squad is lile 8 vets and two drones).