The officiel Japanese Killzone2 website has updated earlier today with a new article appearing on the 'DLC' section of the page. We learn that the third Killzone2 Map pack "Napalm and Petrusite" will be released on July 23rd and cost 800 Yen (5.99 Euros). Two new maps, "Suljeva Cliffside" and "Arctower Landing" will be introduced. Moreover, two new weapons will make their way into the multiplayer mode, those being the flamethrower and boltgun. Last but not least, 8 new trophies will be added.