In game version number 1550
Fix bug that prevents player from completing the second tutorial
Fix Seaplane catapults not visible in the menu
Fix bug where the telescope could be opened even on enemy scout planes
Fix id696 698 airplane's torpedo range bug
Fix the bug that enemy torpedoes can be found when switching to enemy viewpoints
Fix id681 he50 dive bomber model scale problem.
Adjustment: Default graphics quality is set to high