Visari Palace, also known as the Imperial Palace, was Autarch Scolar Visari's home, and also the most important and well-defended place on Helghan. This is the final mission in Killzone 2 and takes about an hour to finish, excluding any possible deaths and current difficulty level. The beginning of the mission starts with the deployment of Sev, Natko, and Rico on the Lazar Highway, a couple of miles from Visari Palace. You are required to take out four control towers that power and control the massive Arc Battery, which is keeping the ISA troops from reaching the ground from their Cruisers.