bug fix

重新调整并且平衡枪榴弹:
*发射HE类型弹药时有效射程为110m,并且弹头飞行轨迹弧度更大；
*发射HEAT类型弹药时有效射程为75m(苏联的会更远一点，为80m),弹头飞行飞行轨迹更加平直;

调整伤害与距离的关系系数： 现在伤害倍率更加合理，实际造成的伤亡主要取决于射击距离与命中精度；
优化掩体类型的伤害系数： 修复了命中多次却无法造成伤害的问题。


Adjust and rebalance rifle grenades:
*When firing HE (High Explosive) rounds, the effective range is 110m with a higher arcing trajectory；
*When firing HEAT (High Armor-Piercing) rounds, the effective range is 75m (Soviet models have slightly longer range, 80m) with a flatter, more direct trajectory;

Revised Damage-Distance Relationship: Damage scaling is now more balanced, with actual inflicted damage primarily determined by engagement range and shot accuracy;
Improved Cover Damage Mechanics: Fixed an issue where repeated hits would sometimes fail to register damage.

***修复了士兵在掩体驻扎时经常执行“躲避”动作的问题，现在士兵会更长时间对外进行输出；
调整了人类的各种移动速度,让战役模式的过场动画中的人类表现更加自然；
调整了各种轻武器的射击频率(为新添加的firetimeout影响器做准备);
调整平衡了枪榴弹的射程和装填时间，以及使用的冷却时间，he从120m降低到了100，heat从90降低到了70.

***Fixed an issue where soldiers would frequently perform the "dodge" action while garrisoned in cover—they will now maintain offensive output for longer periods;
Adjusted various movement speeds of humans to make their performance in campaign mode cutscenes more natural;
Tweaked the firing rates of various light weapons (in preparation for the newly added firetimeout influencer);
Adjusted and balanced the range and reload time of rifle grenades, as well as their cooldown time for use: HE reduced from 120m to 100m, HEAT reduced from 90m to 70m.

5.5