Insert MAP inside MAP

I need to install HungerGames map on my server. The problem is that I prefer everything in 1 World. Is any way to copy part of MAP and paste it into other map Without McEdit (I have hosted Server), WorldEdit Schem(It crash befor it paste whole map). Map is really large. I know that "World" folder contaions "regions" sub-folder. Is possible to move only Important files direct to other map... Or is there other way?