Aircraft Evolution updated!
- Achievements fixed: ⋆ Tank slayer ⋆ Air mechanic ⋆ Just do it
- Improved game performance.
- Corrected the balance of all opponents.
- Slightly increased bomb damage.
- Difficulty levels have been adjusted.
- Fixed various small bugs.
- Fixed design levels in the 4th era.
- Changed the characteristics of enemy aircraft in the 4th era.