You get The Sacrifice campaign for both L4D1 and L4D2.
L4D2 also gets No Mercy, but you still play as Bill/Zoey etc but with the new guns and special infected.
If your Addon Support for L4D2 downloads you can pause/cancel it as it is no longer needed for L4D2 custom campaigns which is good.
***Stop being abusive***
To everyone else;
The same campaign is in both L4D and L4D2? Only differences are infected/weapons?
Interesting...




