Basic guild / mission credit question

Hi, haven't been able to find these answers, thanks for any help!

1) Is it possible to be a member of more than 1 guild at a time?

2) Can you go on missions with other players if you have not been assigned that mission yet, and will you get credit in that case?

3) How does one leave a guild?

Thanks!

1) No
2) Yes
3) Lazy donr feel like typing it.

3) In the guild list (press G) right click on the icon to the left of your name. The drop down menu that appears has an option to quit guild

Missions aren't like quests. If you don't have a quest in your log and someone else does you do not get credit for completing it. Missions are completely different. They are specific areas you go into where the team has to do certain things to complete the mission. Everyone does get credit for completeing the mission.

Thanks much!

All answers are perfect