I'm having the exact same problem, the game crashes just before the first falcon is built. I've only tried it on Cutter but after the first crash I started a new match and rush-built the air building to test the theory with the same crashing result. I haven't had any performance issues with the main game or any other mods I've tried for Halo Wars, I also have a Nvidia 1080 and can run TW:WarhammerII with graphics mods at max settings with good fps even with a crazy amount of units so I don't think my PC is the issue.
Journeyman_Commando
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