Not really that big, I meant about 12 blocks (actual town-road-blocks, sorta 2x2 + roads) total - so a medium small town. It was my starter town, so it took me a good long time to clear it day by day.
Upon returning (for the 2nd time now), I’m in survivor gear and sporting a recently crafted pneumatic bolt thrower and starting my first real deathmobile project on an abandoned APC that I had marked way back on day 2 - so for the most part re-clearing is going a lot faster, though I still have to be pretty careful about hulks or shockers, and I don’t really have a good answer to Juggernaughts until my APC is mobile enough to bring an armored fender to bear.