I apologize for the length. But please read its good advice.
Im going to start with packaging. First of all, you dont need the screenshot included. Second, the readme goes in the packages/base folder with the rest of the stuff. And finally, the screenshot that shows while loading needs to be a .jpg.
Now onto the map. I decided to check it out because it looked pretty interesting. First, i was very disappointed that there were only rockets. Im not a big fan of rockets but i think for the size of the map it would be hell. So maybe switching some of the rockets with some MGs or Rifles or something then it would be a lot better. While running around blowing the place up, I noticed my health. After a few hits from a rocket you need a health pickup, but there is no health. So I think that if you added some health and armour it would help a lot. While i was running around i got stuck a few times. This was caused by the railing. Now, the railing is good but i think that the railing on the inside corners of the platforms is bad. Becuase when you run around the map you tend to want to cut the corners. When you do that, you run into the inside railing. This could spell disaster for anyone who gets caught. I also didnt like the four jumppads that were in the middle. They are not a big problem, I think i could deal with them, but it gets annoying when you come up from the lower platforms and then you hit the middle jumppad, which is good btw, and then you come up and hit the next jumppad and u go off the map. Now i only did it a few times, but when you are in a hurry you easily fall off. Now the reason why i think i could deal with it is because you need that jumppad to get onto the high middle platform. So if you have no ideas to fix it then i could deal with it. Next issue is size. This map is very very small. Which also leads to another issue. You fall off this map like its nothing. I think if you made the platforms mabye ummm, twice as big then there would be no problem. Also adding some more platforms would make it better. And also one problem i happened to notice. This is hard to explain without showing you but do you know the brackets that hold the squares together? If you are on one of the two main platforms on each end then when u look at the brackets, the two that are going from left to right are curved out. What im saying is, there are extra polygons on each of those brackets, and you have hundreds of these brackets. Not much of a problem but it could help a bit.
Now I think this map looks pretty nice. The geometry is nice, the textures were used very well, and the lighting is nice until you go on the lower platforms. You used a nice grey texture that looks good when its in dark light, but the radius on all the lights is very big. I know why you made them big, but it makes the bottom of the platforms look ugly. There is too much light shining on the bottom of the platforms. So you should play around with the lighting to try to lighten that up.
Overall, its a nice map that could be fun to play if you fix it. I rate it as of now a 2.5 which rounds to a 3, but it could raise a lot if you do a major overhaul. Thank you very much for hanging in there and reading this long reveiw.