The Vanguard Initiative was a promotional offering during the closed beta stage of Hawken. The offerings gave players access to exclusive mechs, repair drones, etc. There were 4 different offerings - the Recruit package, the Ensign package, the Lieutenant package and the Commander package.
The $30 Lieutenant package included $40 in Meteor Credits, a prototype Mech called Cupcake, exclusive "Hawken Silver" camouflage and emblem, a 3-day XP boost, and a 3-day HAWKEN Credit boost.
The $60 Commander package included $75 in Meteor Credits, a prototype Mech called Cupcake, a prototype Repair Drone called Fire Drone, exclusive "Hawken Gold" camouflage and emblem, a 7-day XP boost, a 7-day HAWKEN Credit boost, and your name on the official HAWKEN game credits.