As promised, along with a number of tweaks, Tripwire has released the free "Level Up" DLC (detailed below) and a free weekend is underway at Steam. In addition the "Nightfall" DLC Character Pack is now available for $1.99.
- KF-Wyre: a map set in the dark forests in southern England, with a hidden Horzine facility buried underground.
- KF-Bedlam: this map is set in the aftermath of a Halloween rave at a crumbling and abandoned lunatic asylum, forcing your squad to fight through claustrophobic corridors and haunted hallways, all to the left-over rave tunes and lighting.
- KF-Waterworks: the winning map from Wave 1 of the Grindhouse mapping contest, Waterworks' stunning visuals and gameplay blew the judges away. Now you have to blow away all the specimens from the ruins of the pumping station.
- New Demolitions Perk: this one is for all those who like to blow stuff up. This is the guy who knows his explosives. Proximity-fuzed pipe-bombs and grenade launchers - you get the idea!
- All Perks now have a Level 6 to achieve - with even more goodies for getting there.
- Introducing our new Specimen - the Husk: this was Horzine's first serious attempt at a clone with a ranged attack. Grafting a fireball-launcher to his arm gave him a vicious long-range attack and gives the gameplay a whole new dynamic. Just don't stand still when he arrives - and have a Sharpshooter handy to keep him at bay.
- MP7M Medic Gun: Horzine took a submachine gun and added their prototype healing-dart gun to it. Now the Medic has the perfect combo of fire-power combined with the ability to heal team-mates from a distance.
- The M79 Grenade Launcher has been tucked away in Army arsenals for decades. It may be old, but it is ever-reliable and still packs quite a punch.
- The M32 Multiple Grenade Launcher takes the basic grenade launcher and allows you to fire multiple rounds in quick succession, for even more "boom".
- AA-12 Auto Shotgun: a prototype every Support Specialist wants to get his hands on. Devastating firepower, but just eats ammo!
- M14 Enhanced Battle Rifle: the EBR is a Special Forces version of an old favorite, just right for all the Sharpshooters amongst us.
- SCAR Mk17: another Special Forces weapon, featuring a good rate of fire, good accuracy and a good heavy round. Just what every serious Commando wants!
- Proximity-fused Pipe-bomb: an all-time favorite of Demolitions guys the world over. Arm it, drop it and wait for a horde of bad guys to run over it. Just don't be there when they do!
- Game Lobby Movie Trailers - short movie trailers will now play during the game lobby before a match. These ads will help keep the free content packs rolling!