https://www.youtube.com/watch?v=bjnhx8Ip2Y8 Trailer
If you dont like to watchj videos then this is the new update
With this update, you can look forward to all of the following:
‣ The Last Stand campaign
- The survivors decide to take an alternate path in hopes of salvation, but is this path truly safe?
‣ 30 brand new achievements
- New and unique milestones to strive for!
‣ 26 new survival maps
- How long can you survive against the endless hordes?
‣ 4 new scavenge maps - Wait, people still play scavenge?
‣ 2 brand new melee weapons
- Hunt down a Jockey with the pitchfork or whack it with the shovel. Satisfaction guaranteed!
‣ L4D1 infected
- The L4D1 infected are back, and they're bloodier than ever!
‣ New and previously unused voicelines for survivors - Rochelle has a personality now!
‣ New character animations - New, improved and overhauled animations by our skilled modding team!
‣ Reworked gun models and animations - The guns now behave more like real guns!
‣ PvP enhancements and balance changes
- New attack spots, new tank spawns, and hundreds of new infected ladders for the competitive modes!
‣ Official implementation of CSS weapons
- The CSS weapons are now available to everyone!
‣ Brand new mutations Rocketdude and Tank run - Ever wanted to launch yourself around with a grenade launcher, or run away from hordes of tanks? We've got you covered.
‣ Improved UI options
- Singleplayer option for more gamemodes, Versus Survival is officially brought to the main menu, easier gamemode switching, and new outro stats!
‣ Hundreds of bug and exploit fixes
- The days of falling through elevators are gone!
And to top all of this off, we're going to host a free weekend when the update drops!