Eric (Head Dev) has stated that there is not yet a given date for Adventure mode yet, they had hoped for summer 2014, but had to push it back and they hope 2015.
Co-op is being pushed forward before Adventure mode because all the development for co-op covers the basic coding (for AI and AI commander) is the same for adventure mode.
Adventure mode is intended to be a persistent world (Roleplayers rejoice!) however the adventure mode should be less reliant on other players than Co-op so that should be good for your current wants.
I will tell the Dev team about your suggestion about more information regarding adventure mode, but one there is a lot of information about adventure mode, especially on YouTube, type Guns of Icarus Adventure mode and you'll see a lot of videos about it.
Though I should mention the original kickstarter for Adventure mode was early 2013, and we are over a year after that, meaning it is not something they push to advertise, especially as all the hype/advertisement revolves around Co-op mode.
As for your issue with the gents:
Team Speak is a voice chat program which your clan uses to communicate in game and as a community, as I understand you've got a lot of active clan members who chat there, it's not that people don't like you, it's that they're talking in Team Speak and you can't hear them make other plans, so eliminated that bad feeling jump in TS (even if you don't have a mic) and get involved!
Also if you the pilots got beaten pretty bad, it could be a whole variety of reasons behind it beyond just a pilots skill
Captains have to take on the role of leaders, especially if they want people to follow them to the end of the world and back again, which means doing more than the average player to make friends and communicate with people, with great power comes great responsibility.
-added as you replied while I typed-
Adventure mode will be that little bit of both that you're looking for.