Successfully complete the game and save the game. Instead of starting a new game, load your completed game file. Proceed to immediately after the LEV battle where you must go through two descending rooms. The icon is located at the end of the second room, in the area just prior to the force field tunnel. Kill all the enemies in the second room of the descending path, but do not enter the force field tunnel. Find the two openings immediately below the entrance to the tunnel that are guarded by lasers. Shoot the lasers and enter. Defeat Naket Jethuty and collect the icon.