Updates:
[2013-11-12] Added.
[2013-11-13] Sorted Main Guild Quests by name (Ignoring "The" and "A")
[2013-11-13] Updated some missing requirements with data from settlersonlinewiki.eu
[2014-02-16] All requirements were updated, it should be complete now. (Sorting is on exact Main Guild Quest name again)
[2014-02-20] Added the guild quests that I removed by accident
[2014-02-20] Added a blue-ish color for the guild quests I'm still have to working on.
[2014-02-20] Added navigation links and index per post
[2014-02-21] Made some changes to guild quests based on info sent to me by Nicolai_Hell (thank you!)
[2014-09-23] Finally managed to work my way through the confirmations and updated the threads (this time with backup)
[2016-02-15] Guild quests are not grouped per guild size anymore
This information is not (yet) complete!
If you know the requirements of a personal guild quest, please post the exact wording of the requirements and be sure to include the quest name. I prefer a screenshot of the quest screen with the requirements visible
Disclaimer:
As any player created guide, this thread will probably contain errors. After receiving feedback I'll try to update it as soon as possible
The requirements of the personal guild quests were copied and translated from siedlertools.de and settlersonlinewiki.eu