有人说FMJ是全金属被甲弹？AP是穿甲弹？

可能就是弹药设置吧……

楼上两位说的对，FMJ是全金属被甲弹，AP是穿甲弹，SP是软尖弹。
战争升级说明书原文如下（官网上可下载）：
Joint Ops: Escalation adds 10 new weapons and equipment to the original arsenal.
In addition, players can also choose the type of rounds, for selected weapons, that
they wish to use during combat. There are three different types of ammo.
FULL METAL JACKET (FMJ)
This default ammo type is the standard round for most of the world’s fighting forces. A FMJ
round is a bullet encased in a copper-coated jacket. This reduces the deformation of the
bullet within its target.
ARMOR PEIRCING (AP)
An AP round is much more likely to penetrate body armor than a FMJ or SP round. However,
Armor Piercing ammunition causes less damage than the other two types. This is due to the
fact that the round is highly resistant to deformation as it passes through soft tissue.
SOFT POINT (SP)
Soft point rounds are identified by their lead tip. The metal jacket extends to the tip of the
round and then stops. This allows the round to deform and spread while inside soft tissue.
While not as effective against body armor, SP rounds cause more damage to soft tissue.
你可以理解成这是联合行动中的技能设定，FMJ是普通子弹，AP增加穿透力与对载具杀伤力却减少对人体本身（对防弹衣是增加穿透）杀伤力，SP是增加对人体本身的杀伤力（对防弹衣穿透不够也白搭），却减少穿透力与对载具杀伤力。
可见我们早就有技能设定这种玩法了。

这么说。。野战最好用SP，像海之魂这样的载具战最好用AP？

高人！！

此君可能是黄叔……

那为毛COD6里的FMJ是穿甲弹专门穿墙杀？翻译问题？