Seriously, but no offense, it looks bad, and could probally look x10 better if you took out all the random particles, made good shaders, and unwrapped textures good. The textures dont blend well like they do in odst either, or even like a regular city. go look at the first level in odst and compare it to and you will the see the differences and be able to fix things easilly by comparing. another thing is your modeling, it could use alot more detial then you have in there now. no i dont mean adding random cracks, and tesselating shit, i mean making detials like tv screens, high poly bridges and stairs, wires hanging out of broken city lamps and walkways, things like that. im not trying to be mean, please dont take it that way. im just trying to help.
another thing you could do is create new's paper particle system so there's random paticles in the air for debree, along with random dust and stuff.. you can also make dumpsters, trash cans, and benchs too. make random doors you cant go in becuase there locked. just little things like that, really bring a city like this to life.
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