Complete the Hellfire Fortifications PvP daily quest.
Sometimes gaining reputation with one faction means losing it with an opposing faction. Gaining reputation with factions allows players perks like purchasing special items, benefiting from bonuses, or being offered new and different missions. Completing quests or killing enemies for a faction allows players to gain favor and increase their reputation with individual factions. In The Burning Crusade, players travel to the broken world of Outland where they encounter many new and different factions.