ammo fix

map fix

修复了一些问题如m18“地狱猫”不会射击BTR，以及一些对不同单位使用弹药的切换的改进；
为定制的西线防御模式地图更新了音乐包；
装甲毁伤机制的更改，降低了大爆炸的发生概率.
Fixed some issues such as M18 "Hellcat" not being able to shoot BTR, as well as improvements to switch ammunition usage between different units;
Updated music pack for customized Western Front defense mode map;
The modification of the armor damage mechanism has reduced the probability of a major explosion.

修复了一些问题如m18“地狱猫”不会射击BTR，以及一些对不同单位使用弹药的切换的改进；
为定制的西线防御模式地图更新了音乐包；
装甲毁伤机制的更改，降低了大爆炸的发生概率.
Fixed some issues such as M18 "Hellcat" not being able to shoot BTR, as well as improvements to switch ammunition usage between different units;
Updated music pack for customized Western Front defense mode map;
The modification of the armor damage mechanism has reduced the probability of a major explosion.