"A Community Ambassador is an outstanding community member, a teacher, a helper, and an evangelist for Guns of Icarus Online. CAs are passionate about the game and eager to share that passion, welcoming members into the community and helping new players get started.
CAs are helpful guides when in-game, sharing their knowledge and helping other players on their way. CAs are the people other players look to when they have questions; if they don’t know the answer, they’ll get in touch with someone at Muse who can help. CAs also help maintain a safe and pleasant environment by modeling good manners and sportsmanship, as well as keeping an eye out and reporting any bugs or instances of behavior that’s out of line with our community standards.
CAs may be asked to help spread the word with promotional efforts and running special events, like tournaments and contests. CAs and other experienced players are also sometimes invited to help the developers with things like small-group balance testing or tracking down bugs.
Most importantly, CAs are community leaders and role models. CAs are frequent contributors and drive discussion on the forums, Steam group, and wherever GoIO fans congregate. They also act as ambassadors, reaching out to other communities and spreading the word about the game."
Taken from
http://gunsoficarus.com/community-ambassadors/, about what a CA is and does.
On my behalf, I don't see many CAs teaching at least a few players, but I think that's ok as long as they are helpful in the lobby, forum or otherwise. CA title doesn't come with the duty to teach new players all the time. You should be helpful in any way though.
I can understand some CAs not taking part in any kind of teaching though, since it's generally chaos and only helps a few players of those being taught. There is no common basic guide to provide every new player in training with the same qualified knowledge nor is there a common basis of knowledge by all those new players attending.
They expect the teachers/CAs in those events to show them everything they need and I honstly don't think we're ready to provide them with that yet.