Mods:
Explosive Termites
Landfill
RailTanker
Treefarm
The spawn was on a fairly large peninsula which provided excellent early game protection in the form of a single small chokepoint. After taking down a few dozen trees for wood, Malachite deployed the termites to "liberate" some land for our nefarious purposes. The starting resources were excellent, a few oil spouts and plenty of resources for our 6 players to get up to trains and plastics.
We decided to use a defense of both gun and laser turrets for no particular reason. This turned out to be a very good decision I think as it reduced power spikes and was just outright fun to do.
So, if you are wondering what a factory made by 6 (at least) different people, here's what it looks like. Next time we do this we'll be sure to take many more screenshots.
Factorio Maps dump
Map save right before making Rocket Defense. Ignore SSL certificate warnings, it's valid, just not for this subdomain
Now, for some screenshots...
Early game map
Mid game map
End game map
We're starting up a new modded MP game today most likely. Hop in to the Factorio IRC channel and ask around. We'd love to have you! Here's the map spawn we might use:
New map maybe