The Suspicious Kurzick is a Luxon spy found on the Kurzicks' side in Alliance Battles. If you talk to him in an Alliance Battle map, he will grant you access to the Luxons' side. He can also transport the player from the Kurzick side of Fort Aspenwood and the Jade Quarry to the Luxon side provided that the character has already visited the Luxon side or is a PvP character.
"Quiet, you'll blow my cover. I've infiltrated these tree-loving Kurzicks to let you know that the Luxons could use your help, too. If you're tired of these Kurzick fools and would like to help us out on the front lines, I can arrange for you to travel to our side of the battlefield."