Beware, he is initially hostile to both Horde and Alliance, and will only become friendly to those that fire a [Flare Gun] twice and then "/salute" him, which is only an option available to rogues undertaking the relevant quest chain. Although he is elite and has a golden dragon portrait, killing him is inadvisable for two reasons - since he is a quest NPC, he drops no loot at all, and he also has a rather impressive amount of HP for his level, and will quickly lay waste to the unprepared. He also gives you [Fizzule's Whistle], which makes approaching him easier; just use the whistle.