The Antietam MP scenario is 11 hours long or when one side surrenders. Of course we don't expect it to last 11 hours, so in other words, when one side surrenders..Did someone convert the 11 hour scenario to MP? If so, maybe a conversion error. Did you try the included Antietam MP scenario? Did you turn off all mods?No luck whatsoever getting 11 hour scenario to run.
We would load then freeze at 4 seconds
