For example, if you download a PKG file from an online source, you may want to verify that the file does not contain malware. L4D 2 features “The AI Director 2.0” which expands the Director’s ability to customize level layout, world objects, weather, and lighting to reflect different times of day.Before using a PKG file to install an application, you may want to check what files the PKG file contains. AI Director 2.0: Advanced technology dubbed “The AI Director” drove L4D’s unique gameplay – customizing enemy population, effects, and music, based upon the players’ performance. Each of the five new campaigns contains at least one new 'uncommon common' zombies which are exclusive to that campaign.

Five expansive campaigns for co-operative, Versus and Survival game modes. Over 20 new weapons & items headlined by over 10 melee weapons – axe, chainsaw, frying pan, baseball bat – allow you to get up close with the zombies Next generation co-op action gaming from the makers of Half-Life, Portal, Team Fortress and Counter-Strike. L4D2 promises a satisfying and uniquely challenging experience every time the game is played, custom-fitted to your style of play.īe sure to pick up a copy November 17th on Xbox® 360 or Steam®, and discover for yourself how much fun a zombie apocalypse can be: This improved Director has the ability to procedurally change the weather you’ll fight through and the pathways you’ll take, in addition to tailoring the enemy population, effects, and sounds to match your performance. Helping to take L4D’s frantic, action-packed gameplay to the next level is AI Director 2.0.

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