Bring 15 Cenarion Combat Badges, 20 Cenarion Logistics Badges, 20 Cenarion Tactical Badges and 1 Mark of Cenarius to Vargus at Cenarion Hold in Silithus. You must also attain Exalted reputation with Cenarion Circle to be able to complete this quest.
The badges you collect from performing combat, logistics and tactical assignments for Cenarion Hold are more than just for show, [player].
You'd be wise to hold on to them. As you prove your loyalty to our organization I can offer you some of the gear we reserve for our closest allies in exchange for those badges.