Crimson ButterfIy
Choukyuu Bushin Hakazan
spritrix
it could have very easily just been DLC though....
No.
lol thts what i feel like saying
If the people that claim it all could have been DLC, it just shows how little they actually know.
All the changes and additions made for L4D2 were changes the team came up with they wanted to actually patch into L4D. The problem there though was that the ideas they came up with tended to be intermeshed, which posed problems for just how much they could release at once as DLC. Incremental updates really only work if you can include some decent amount of content at once without needing a huge patch to add in everything. With how so many things ended up relying on something else, they couldn't do the incremental updates, they'd end up making updates to make changes that no one can even see or use until the content that actually uses it is released however much time later. So instead, they decided to create an entire new game.
tl;dr L4D2 is being made because planned DLC was too big to be able to make as DLC, precisely.