New Features:
1. Added the J15DT aircraft, which can take off without weapons and reduces the movement speed of enemy targets and the damage taken by friendly aircraft.
2. Upgraded aircraft will display a specialization marker based on their points, indicated by a small marker of the corresponding color on the side of their cockpit.
Bug Fixes:
1. Corrected the incorrect function description of the KJ600; it does not have a deceleration function.