HalftoneStatic

I want to host a multiplayer game on my machine where me and 5-6 other people can play on a map, let's say Chernaurus, and each of us has the ability to spawn in whatever items/weapons/vehicles we want through a straightforward GUI. I've tried several different mods, many of which did not do specifically this or were far too complex and overkill for what I was trying to achieve. I guess I am looking for a multiplayer sandbox experience? I find it hard to believe that nobody else has wanted to do this with their friends and I just know that there has to be a straightforward solution out there and I am just missing it. Any help is appreciated, thank you.