Wikia

Warzones are instanced areas in which players can compete against each other for various objectives. There are currently five warzones in the game, Alderaan Civil War, The Voidstar, Huttball, Novare Coast and The Ancient Hypergate . Players will receive Valor and Warzone commendations as well as experience and credits for competing in warzones. Companion characters cannot participate in warzones. Players with the same allegiance can compete against each other in all warzones. You may come across a game where there are Hackers.

After each warzone the players vote for the Most Valuable Player (MVP) of the match.