Vanguard is both a Archer and a Warrior, and is the most deadly PvP in war, since they can both attack with melee, and ranged.
The greatest income for a Vanguard is to be a guard in a town and/or hunting down monsters at night. Being a guild member is also a very good option, as they are good at fighting against enemies.
Tips for playing Vanguard:
1. If in a guild/group/faction war, go after the most heavy to make the attack/defence easier for mates.
2. Train combat skills, you will be alot more deadly with high combat skills.
3. Have enchanted gear. That will make you a battle tank.
Tip for playing against one:
1. If there is a enemy Vanguard, run.
2. Dont enrage these powerful Vanguards. same rule as for Battle Mage, Paladin and Warrior, they will kick you to the Dark Realm like apples.