Campaign/AoS? How does that work or how you'll make it unique? I usually just see a campaign that have a part where you have to play mini AoS.
And lol, ChaosArena is buggy as hell. XD
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I have to let you be able to see the concept with a playable map from yours truly and hopefully enough to convince you to do this CO-OP project as I would like to call it.
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Even though I'm not as active as I was before on map making I can still say that it is still my most active hobby so I can wait until forever for test map.