This is a Duke Nukem 3D Starcraft 2 map, so since I'm using IP from 2 devs I'm inclined to say that the rights belong to them. I would prefer to have help in finishing my mod to someone taking the idea, since that would be a douchebag move and I'm already wanting people to help anyways. By taking the idea and not offering to help, you are declaring that you and your team are in fact douche bags that love Justin Bieber.