You have left a lot of critical information out so I dunno how much I can help you without that but ehhh, first of all, always plan your maps with north being at the top, since that is going to be north ingame and its best to plan it the same way your minimap etc is going to look, epically keep the same north point if its based on a real location or links to anouther map.
So your plan should look a little more like this.
Also note I have made the image a square image, 982x982 pixels, this is because your map will be square ingame, not including map borders you may put in but in PR we dont like them very much. As you can see, you have a lot of area with nothing planned in them, you should have a basic idea of what is going to be in each area, even if only in your head but if drawing up a plan, you should include it on it.
Now next bit, a very critical bit, who is going to be your op for? what kind of location is your map based in? for all I can tell from you minimap your map could be based on mars with a load of sci-fi buildings etc, apart from there are no known rivers on mars but still, its pretty damn critical.
Now is this place a real location? going by alot of the stuff I take it you have taken this map off a road map image or something and then planned ontop if it since the river, roads etc are very well drawn and accurate where the rest isnt. is this map based on some kind of real event or just a made up even in a real place (ie, like muttrah).
if its a made up event on a real or non real place, I would have the attacks assaulting from the south, pushing north into the town, with the defenders holding most of the points down the road and the town itself. Having both start at there main base without any real balance reason why is a little odd. For muttrah the main reason why the MEC start at the main (And the con site) is cos the USMC need time to get some kind of foot hold, otherwise they are screwed. in the case of your map, both team's already have a good foot hold, so if there is such a thing as a defender side, then you really need them holding a lot of flags, then you have the attackers needing to assault right up into the town. A head on head for the most point is kinda odd, will be quite a bit like EJOD otherwise with the town being in the top instead of the middle?
Also what is the size of this map, 1024x2 (2km x 2km)?
What are the main types of combat you hope to get out of this map, tank combat?
and the race track flag seems pretty odd to me? Wouldn't a small village or something be more suitable?
these are some areas you need to think about.
Also, how many pratice maps have you done so far? need to do a few and a bunch of tuts before you consider doing a full map.