MULTIPLAYER
Player Mechanics:
Most of the player mechanics available in the single-player campaign are now also available in multiplayer. This includes the cover system that allows you to snap in to/lean out of/vault over cover, as well as the sliding mechanic. In addition, the brutal melee system has been expanded with drop-down melees (as seen in the single-player playthrough).
Weapons:
Multiplayer features 22 different weapons, all of them unlocked from the get-go. Your ability to master the weapons is key, as each weapon has very different dynamics. For an in-depth look at the new weapons, read our “Guerrilla Armory” articles about the StA-55 assault rifle, the VC-15 shotgun pistol, the M55 assault rifle and the VC-30 shotgun. More weapon articles are coming to Killzone.com soon!
Attachments:
There are 19 different weapon attachments in multiplayer, unlocked by completing specific challenges. You can use these to extend the functionality of your weapons in a variety ways, from enhanced scopes to new ammo types to secondary fire options. Adding attachments that complement your playing style can greatly enhance your combat effectiveness.
Classes & Abilities:
There are three distinct classes and 12 unique special abilities in multiplayer. Each of the classes can be enhanced with up to two special abilities, allowing for some highly specialized playing styles. We’ll cover the three classes and their available abilities in more detail in the coming weeks, but we can already reveal that there will be a Placeable Spawn Beacon ability.
Custom Warzones:
Warzones, with their trademark rotating mission modes, return to multiplayer with supercharged customization features. There are eight mission modes in total, four of which are new to Killzone. More importantly, you can customize these modes to your heart’s content and share your favorite settings with the rest of the community. We will regularly highlight popular and interesting community-created Warzones for you to try out.
Combat Honors:
Combat Honors are temporary bonuses that can be activated by earning enough points during a round. These bonuses stay active for as long you continue play - when your play session ends, you lose your Combat Honors. Combat Honors include bonuses such as an increase to movement speed, etc.
Post-Launch Support:
We aim to keep the post-launch multiplayer experience fresh through the frequent release of paid DLC expansion packs that offer new gameplay and customization features. At the same time, all DLC multiplayer maps will be released free of charge to prevent the player base from becoming fractured.
if anyone didnt know by now GG i so confident on the new ds4 that there will be no aim assistance due to how good the controller is. 
. Looking forward to this - love the art style of KZ, shame no ISA blue...