I would personally like it on top of the buildings
But instead of making a easy way up there maybe you could make it a bit of a challenge to get up there

I feel like, if pulled off correctly, having the safezone on top of the buildings would be really interesting. Maybe add some helipads (or makeshift wooden platforms) if the zone is developed and civilized enough. I agree with Apples though; It shouldn't be too easy to access, or else the zombies would have attacked it already.

引用自 Beyzler：

I like a sewers camp idea. It's safer to survive underground in my opinion. You won't allert much zombies that can break up barricades and trap you on high heights (don't forget mega zombies throwing boulders and spitters spits acids and... if burner managed to reach even first floor - catastrophe. The building would be burned entirely) or a bandits that attracted by civillized look of building(s) and can make a ambush on survivors. Unlike city tops base, below ground base more sicretly and hiden from eyes of unwanted visitors, climate here more smoother and hursh Urals winters won't affect on surviving well, except you need to find food outside of shelter during blizzards, It's easyer to arrange defence down here. The water sourse is literaly below your feet (not murky water, i mean underground water horizons) you can also grow a mushrooms for food source. The main problems of it is a lack of electricity (If only there is not a huge generator(s)) and shortage of sunlight. Also comprassed space and oxygen need. I was proceede from my point of realistic look (lol, zombie infection is so "realistic" ) and my vote would be different from your. Welp. Map would look great with one of voted features.

You are right about that but if the zombies made it into the sewers well good luck not dying