L4D2 update: Oh for the love of....

From the newest blog post from L4D blog:

This is a kind of awkward looking poster, i mean is it just me? 3 of them have their weapon over their shoulder, are we having a peaceful stroll through the park? it's way too much like they're posing for a picture, i mean it's always been like that, but they used to try to look more casual about it and like they were alert for infected, but this is so "BAM! strike a pose!". Look at nick! that's a swimsuit model pose right there!

Anyway, we can conclude a few things:

• Although the possibility of the fallen survivor being randomly picked still exists, we can b sure Louis will b it either way.
• Mutation is their word for mods, in the unreal tournament kind of sense.
• The fallen does turn into a uncommon common infected (thus defeating the point of people being immune or not, good going).
• Can't play with the good characters (L4D1 cast).

So, in short, I'm starting to already feel let down with this, What's the point of the L4D1 cast being there if they're not playable? so it's just another boring ass L4D2 campaign with bots following u around?

I was hoping to finally b able to play in a larger group killing tons of shit. I just know they're going to find a way to ruin their only good idea.