1) Guild warfare is done once a day around 7 or 8 cst, generally speaking at this point in the game you have to be part of the biggest guild of the realm your in in (ie. Forest, Dark, ect.) if your not in a guild that big you will not be able to complete that for the day.

2) Pirates requires another member of your guild to partner with you on your boat by joining a left and right half of a map, also while you are sailing or sitting in a boat other players can attack you to try and steal your piece of map, successfully completing a voyage means waiting 10 minutes without being defeated!

Hope this helps