Killzone 2 (2009)
Killzone 2 is an action-packed first person shooter video game developed by Sony. Set two years after the Helghast assault on Vekta, players take on the role of Sev, a battle-hardened veteran and member of a special forces unit known as the Legion. Their mission is to defeat the enemy's home world of Helghan and capture its leader, Emperor Visari. Upon their arrival in Pyrrhus, they soon discover that not only have the Helghast adapted to their new environment, but they have also gained access to powerful sources of energy which can be used against them. As Sev leads his squad through treacherous conditions in order to complete their mission, they realize that their toughest challenge may not come from enemy forces but from nature itself.