Maps for 5 vs A.I

I’m gonna do a LAN-Party with my friends (we are 5 or maybe 6 people) and we need maps we can play as a team vs AI. Is there a way i can edit 4v4 maps to 5v3 or are there sources of custom maps that support 5v5 or even 6v6 modes?
I can’t find much tutorial material on the editor…

Thanks for any help!

Man I know what you mean, I’ve had 5 friends on at a time and we can’t do anything past 4v4. But as we speak there are no official 5v5 maps, the best I can do is recommend the unofficial maps that should work, although some have some OP mods built onto them, anyway, good luck ma man.