:ff:
is there a way to make a custom danger room map using custom made heroes?
You mean so that it ignores the characters that the players chosen and adds in a set of characters you've built in?
Yeah, it is possible.
Characters spawn around a 'skirmishspawn' marker with names 'hero_0','hero_1' and so on. Its possible to delete them from script and spawn in whoever you want. I'm doing something like this in Amazanauts.
Are you making a map, or a script file, or both? If you can give me some more details on what you're trying to do I can probably help you out more.