*edit to update below
- The Last Stand full campaign (a brand new campaign based on the L4D1 survival map that was never added to L4D2)
- 30 new achievements
- 26 new survival maps
- 4 new salvage maps
- 2 new melee weapons - pitchfork and shovel
- L4D1 zombie skins
- L4D1 sounds
- New/unused voice lines added
- new/updated character animations
- reworked gun models and animations
- PVP enhancements and balance changes, like new infected ladders
- Counter-Strike weapons (sound like they are rare pick ups in maps)
- New Mutations
- Single player available for all modes
- Bug fixes (falling through elevators, cheat spots being removed)
There will also be a free L4D2 weekend when this ships.
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