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.

map fix

加入了一张新的防御模式地图“诺维尔”
Added a new defense mode map 'Norville'