重做武器音效，优化武器射速
Rework weapon sound effects to optimize weapon firing rate

Optimized ammo
优化了弹药参数
Optimized the reload animation
优化了部分换弹动画
Optimized the Shooting sound of High speed shoot mode
优化了高速射击模式下的射击音效
Fixed sound discontinuous problem
修复了高速射击模式音效不连贯的问题

重新制作了音效，优化射速。
remake gun fire sound and optimizes the firing rate.

Reduces the resolution of the texture，Reduced file size
降低了贴图的分辨率，原来的分辨率太高了，效果也没有提升太多，现在是2k贴图

add HE ammo
增加了HE弹药