"ONE-ON-ONE” submarine battle stage,  which was recommended to be added by your user comments, is added in this version.

# Major Changes

1. ONE-ON-ONE BATTLE STAGE

 - Added one-on-one battle stage.
 - New equipments are added,
    - Homing Torpedos, Active Sonar, Passive Sonar, Decoy..

 - ATTACK
  - Check the enemy direction quietly with passive sonar.
  - Get closer
  - Lock on the enemy submarine for the homing torpedo.
  - Launch!

 - DEFENSE
  - Utilize DECOY for deceiving the enemy torpedo.
  - Avoid the enemy torpedo by quick maneuver.

 - FIND
  - Active sonar tells the enemy your submarine location.
  - Use Passive sonar first and find enemy location.
  - Turn your submarine to the enemy.
  - Activate Active sonar and Lock-on the enemy.
  - Launch your Homing torpedo to the enemy.

 - We changed the submarine steering.
   - One-on-one battle needs 3D steering. So the steering
     system of your submarine is changed.
   - See the One-on-one battle Manual if you need.

 - HORMING-TORPEDO
  - In this battle, special Homing torpedoes are used
    instead of normal torpedoes which are used in prior
    battle stages.
  - Since this homing torpedoes are supplied independently
    in this stage, there is no effect on the quantity of normal
    torpedoes for your other battle stages.
  - Also you can not purchase Homing torpedoes.
    By watching Ads-Video, you can get more
    Homing torpedoes.

2. Changes in conventional battle stages

 - Visual quality improvement
 - Enemy Destroyer’s attack scene improvement.
 - Unbeatable destroyer bug in level 2,3 battle is revised.
   (Sorry.. )