Hello sufi
Thought I look at your terrain.
Pretty good for first try.
Some thoughts
1) only 1 takeoff per fields
2) bases too far away
3) you need to make sure that the airfield bases are placed inside the 1mile square grid and it must be level
4) I believe you have the 1st placing field bug.
Here a file that I put together, still need to update it but it should be of some help to you. Look at "Notes-For-Editor" file for the 1st field bug info.
http://accesswave.ca/~tscott/AH-stuff/AHeditor&stuff/AHEhelp.ZIP Pokie