ai improve

修复了AA目标选择器只能射击飞机而忽略地面目标的bug；
为每种AAgun不同弹种添加了特殊的装填时长；
让AA使用ap射击飞机避免与用he射击地面目标的射程产生冲突；
进一步提高了飞行器的飞行速度,以提高坠机时飞行距离,避免其残骸炸到己方单位;
修改飞机实体使其能在战局中被玩家直接操控,征召并在无敌CD冷却后可被使用.

Fixed a bug where the AA target selector could only engage aircraft while ignoring ground targets;
Added unique reload times for different ammunition types of each AA gun;
Configured AA to use AP (armor-piercing) rounds against aircraft to avoid range conflicts with HE (high-explosive) rounds used for ground targets;
Increased aircraft flight speed to extend crash distance, preventing wreckage from damaging friendly units;
Modified aircraft entities to allow direct player control during battles—deployable and usable after the invincibility cooldown ends.

bug fix

适当调整了德国四联装flak38防空炮和美国两种二联装四联装M2HB重机枪的射速和开火声音.并且两将种防空型M2HB重机枪的射程提高到200m(对空距离).
Adjusted the firing rate and sound effects for the German quadruple Flak 38 anti-aircraft gun and the American twin and quadruple M2HB heavy machine guns appropriately.The engagement range of the anti-aircraft M2HB machine guns (both twin and quadruple versions) has been extended to 200m (for anti-air purposes).

bug fix

bug fix