The way I understand it now is that choosing your allegiance ONLY affects which elite mission you can shoot for, and which towns you can control. I could be wrong there...here's some specific questions
1. If your guild aligns with one faction, can you still do quests/gain faction points/travel to all the towns of the other faction?
2. Once you choose one faction, can you switch later on? Is it hard to do?
3. If you ally yourself with one faction, you can start 12v12 battles from your guild hall. Can you participate in 12v12 for the other side by going to the correct town on the other side? Or by choosing Luxon do you lose the opportunity for any guild members to do 12v12 battles for the Kurzicks?
In short...how does the guild's choice of sides affect your individual characters?
Thanks in advance for any help.