In Warhammer Online, Renown is a type of character advancement earned through RvR participation.
To earn renown in WAR, you have to participate in any kind of such as player killing, capturing and defending keeps, capturing zone pairs, and scenarios. And also healers are awarded renown separately by healing allies, even so much as being awarded renown from healing players that were recently in RvR combat.
Renown Trainers (Stats and Tactics) and Renown Gear Vendors (Equipment) can be found in Capital cities, Sigmar's Hammer (Order), The Viper's Pit (Destruction), Warcamps, Keeps.
There is a renown rank system for characters. Players start at R1/RR0 and can progress to a maximum of R40/RR80. Players are unable to receive Renown Rank higher than their current Player Rank until they have reached R40. As your Renown Rank increases, you will be awarded special titles that are unique to your army. These titles cannot be turned off, but can be replaced by other titles players are rewarded throughout the game.
It costs you some Warhammer online gold to purchase Basic Renown Gear at Renown Gear Vendors as a player gains Player and Renown Ranks. Set pieces, which are Armory unlocks, can be found not only on the vendors, but also throughout each tier such as in Warhammer gold bags from capturing keeps, drops from Sergeants during Battlefield Objective (BO) siezures, drops from enemy players in RvR and scenarios, and city captures. Players should always loot enemy corpses when in battle - they just might be carrying your set piece!
Renown Tactics are available from Renown Trainers and cost Renown Points. Renown Tactics focus solely on RvR gain. Each tactic costs 2 RP but keep in mind that ranks 1-19 only have one tactic slot available and 20-40 only have two.