The PlayStation Network is set to be engulfed in the flames of war (or should I say Warzone) as Killzone 3 prepares for its North American launch tomorrow. To get players comfortable with the very deep class system of the game’s multiplayer, Killzone.com’s blog is hosting a series of videos on each class. The first one is the engineer, master of turret bots and the keyholder to emplaced weapons and ammo stockpiles. Guerilla’s Multiplayer Designer Dan Nanni explains the supportive nature of the engineer, detailing each of the class’ weapons and game-changing abilities. The rest of the classes should be up in the coming days so stay tuned for some intel that’s sure to come in handy out there.