I've just set up a project on Crowdin for ShellShock Live, which will allow the community to help add, improve, and vote on translations. Here's the link:
https://crowdin.com/project/shellshock-live
If you're fluent in another language, your help would be greatly appreciated! Please feel free to join through the site and help out where you can.
I'm also planning to make translating weapon names optional via an in-game setting. Some players might want to keep them in English while the UI is localized.
Thanks in advance for the help!