how to get throught the first mission

[R@S]

I think your questions are answered in the manual. You can find that in your start menu.

How to get a permint - Read what Alexey Rezvi, the first person you talk to, says to you and ask him questions. Then you will find out how to get a permit to leave the safe zone.

As I stated before, to leave a sector, press the "Leave" button below the clock in your lower right corner. You will then enter the strategic map where you can select you destination by left-clicking on the map. Adjust the slider in your upper left corner to speed up travel time.

If you are in combat mode, go stand inside the yellow circles and wait for a while until the "Leave" button is available again.