This wont always work but all you need to do is
1. Get the guilds vent info
2. Start talking to the GM on vent, linking him a b/s armory and saying you are transfering to that server and wanna join his guild
3. after a while ask him to invite a alt in the guild so you can see how the guild runs
4. Look at who is ranked high enough in the guild to invite people
5. when the GM logs off, make a new alt with the GM name in it ex. GM name is MMOwned make a guy called bankmmownedbank have him invite you to the guild and promte you as far as he can
6. start booting people when no one is on
this might not always work cause in really good guilds only a certail amount of people can invite and boot people from a guild