m2br fix

*适当调整了狙击枪射程和瞄准参数;
*修改了医疗兵属性的耐力，以减少行军时小队队长与队员的间距.

*Properly adjusted the range and aiming parameters of the sniper rifle;
*Modified the endurance attribute of medical soldiers to reduce the distance between team leaders and members during marching

***因为征服地图与游戏的文件关系，为提高与其他地图mod的兼容性，将自制的征服地图包独立出去；
*修改了苏军m72摩托车.

***Due to the file relationship between the conquest map and the game, in order to improve compatibility with other map mods, the self-made conquest map package will be separated into a mod;
*Modified the Soviet M72 motorcycle.

调整了子弹飞行速度
Adjusted the bullet's flight speed