@Moka Yes, you can merge this translation into the respective addons, just mention me in your contribution.

Hi there. I am a contributor to the ARC9 Base, Gunsmith Reloaded and MW19 weapon addons. I would like to talk to you about possibly including these translations directly into the respective addons. I have sent you a friend request, so we can talk in private.
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您好。我是 ARC9 Base、Gunsmith Reloaded 和 MW19 武器插件的贡献者。我想和您谈谈能否将这些翻译直接添加到相应的插件中。我已经向您发送了好友请求，以便我们可以私聊。