Hey - the example I had in my head was the city style map suggested in the OP. If I didn’t use Maya/, Sketchup would let you quickly make a bunch of pieces to use in a blockout and then assemble them in UE 4- where you can adjust scale, squash,etc. I’d make some road pieces, ramps, bridges - things that I could test spaces with. I’d only start with a few. Once I started running around, I’d make another set of Lego type bits. Iterate again. method could also facilitate a later art pass because I see how my meshes will ultimately work together.
