skin fix

修改了德军老兵班和精锐步兵班的装备;
为芬兰的麦德森机枪添加了“最短的”射击词条;
修改了部分smg的弹匣容量;
对步兵的生存能力进行了合理调整(掩体和趴下状态对爆炸的防御buff).
Modified the equipment of the German veteran squad and elite infantry squad;
Added 'shortest' shooting entry for Finland's Madsen machine gun;
Modified the magazine capacity of some SMGs;
Reasonably adjusted the survival ability of infantry (defense buff against explosions in cover and lying down states).

fps fix

修改了每个阵营携带反坦克武器的弹药数量
Modified the ammunition quantity of anti tank weapons carried by each faction