“Opuk” is universal: infantries and artilleries, seagoing ships and aviations can practice their firing possibilities.

“Opuk”兵种全面：步兵、炮兵、远航船只和航空兵，他们都在这里练习作战能力。

I will repeat again, European infantries at this time is undisciplined as a whole, they are not able to keep formation while attacking, the Ming has no problem of doing so.

我要再次运用步兵在这个时候，欧洲作为一个整体是没有纪律，他们不能够保持形成攻击时，明朝的问题没有做这样的事情。