I just put a new page on Gladius Wiki with first modding guidance.
It's here:
https://gladiusrelicsofwar.gamepedia.com/Modding
You may add your new pages there with your guides too.
I must admit I suffered a lot of crashes and sleepless nights while implementing new factions, units and upgrades; that would avoid you some of these pains.
Also I encourage the devs to help us reduce the number of crashes when modding and increase the information we receive.
(EDIT: devs were really were quick to react, thas's awesome! many updates have been rolled in already and modding is now so very convenient!)
(EDIT #2: the modding section now has most articles written by Qai, Potato McWhiskey, Kravix and more)
I think we can bring Gladius to the top for the three years to come. So I invite others to contribute.
Oh, and again, if you are a 3D artist...
