Soldato
I'm with you on that, probably part of game i hate most.
Wish there was a option to disable chaos.
I get it that the Chaos invasion is just part of the game and I always defeat them (so far!) but they just spawn anywhere they please and just trash me so I have to either hastily build armies near to where they are or drag my other armies half way across an enormous map which takes ages just to defeat them. Once that's done, I drag my armies half way across the map again to continue until the next invasion. Does killing Archaeon stop the Chaos invasions? It just means that campaigns last FOREVER!
Don't know much about mods or installing them. Will have a look.