I found a new modded SMP that is trying to be a mix of different play styles. You can go solo or team up and build a nation. There is a war idea for later but right now wars are not allowed since the server is still new and sorting rules.
The big focus is the Create mod with lots of addons so people can make huge farms and crazy automation. The only real limit is when your builds start making the server lag so they are keeping the modpack smaller to handle big projects.
It also has Valkyrian Skies and Eureka so you can build tanks and airplanes and boats. The rules are still getting made but for now do not use nukes and do not be an A hole.
