I Have A Small Question About Multiplayer

I've been looking over the forums about multiplayer, and it sounds all well amnd good. But, theres one thing that I haven't caught yet. Is multiplayer going to be available for Chaper 1 via a client patch or something, or will I need to purchase Chapter 2? If I don't have to, thats great. If I have to, well, thats irrelivant, since I plan on buying it anyways.

Sorry if this has been asked before.

you missed the post where it is explained ... the client is a standalone download, approx 800MB if you dont have any of the SP chapters, and about 100MB if you do, be that ch.1,2...5 or 10

Oh, I see now. Sorry about that <_< My bad. Well, at least I know I'll be able to play it without having to buy the next chapter right away. I'll likely have to leave the computer on overnight while I download though. 800mbs. Thats a biggy, eh?

its only 100MB for Ch.1 owners