So i made my first map finally after tons of work, i tested the game on multiplayer and worked just great and everything was awesome.
Then i wanted to make it coop, did the navmesh, bots, gamemode, strategic areas, everything, yet everytime i load the game in coop it crashes at 15%, i ran windowed mode and it said i need strategic areas, after adding that, it still crashes but this time it shows no errors at all
I doubt its because of objects or terrain because the non coop version works fine.

