Possibly L4D3 reference?

[Inv3rted]

http://www.l4d.com/comic/assets/1280/L4dpg103.jpg

Look at the center of the page. I found it while reading the comic.

[Ad Bot]

[Qwepir]

maybe it's just a zombie being shot in the hand

[Camera]

I doubt those are the characters that are going to be used. Where'd you find this? :o

[lolzorz mcgee]

The artist forgets up once and people jump on it.

[WRB852]

Valve doesn't forget up.

[Skip]

I doubt it means anything.
Loving how he's counting down his kills.

[Wynd_Fox]

Funny that they only show that bit of the zombies getting shot.

[Kapturrith]

Valve doesn't forget up.

lol

[DracoSoul]

I don't see why people always get worked up over valve releasing a new game. Try not to be too poor to spend 50 bucks. Not implying you're getting worked up, Rex, just throwing this out there.

[Inv3rted]

L4D2 added more content than most game sequels so anyone who complains can eat the same pile of stuff the new TF2 item store whiners eat.

[Masterlegodude]

The zombie's hand still has a thumb, so it has four fingers

...

OMG L4D4 CONFIRMED!!1

[Skip]

L4D2 added more content than most game sequels so anyone who complains can eat the same pile of stuff the new TF2 item store whiners eat.

I didn't see anyone complain about this. Not in this topic, anyway.

[DracoSoul]

I didn't see anyone complain about this. Not in this topic, anyway.

LOL!

[Skip]

LOL!

What.

[?]

Doesn't look like much to me.