I don't mean to sound rude, I really don't, but it is obvious that you have NO experience with online FPS PC gaming, much less CoD4. Do yourself a favour, go find a friend with CoD4 on the pc (and an adsl line) and play online to get at least some understanding of both the community and how it functions.
Clan players have just as much right to play in "public" matches as we do to play in clan matches. I have over 600 hours in CoD4, and of that, at least 500 hours have been spent on one or other public server (all of the achievements in cod4 are based on public play, for instance). Furthermore, clan players play public matches on dedicated Promod servers (TDM and S&D). Although the majority of players on these servers are indeed clan players, many "normal" players also join them. Matchmaking would basically deny us the ability to do the above, since the clan players are supposedly "better" than normal public players, and thus normal players will almost certainly not be allowed access to these servers.
I can hear you asking the question "Why is this a problem, though?" The problem is, I have seen players who are decidedly average on regulation servers play on the Promod servers with the better players for a month or two. The standard of their gameplay increases exponentially, with the exposure to the better players. Matchmaking would prevent this. In my personal experience (over more than 6 years of online gaming, mind) is that by playing with players far above your skill level, your own skill level rises much faster than if you were to play with those only on your skill/rank level. Heck, compare those people who have never played online, only on LAN with their friends, versus those who have many years of online experience. I promise you, those people with online experience will dominate, simply because they have been exposed to a far wider range of players and experienced players.
Now, with regard to this post:
1) The ability to host additional players is indeed dependent on your line. On both the upload AND the download speed. Currently, the maximum residential speed available is 4mbps download, and 512kbps up. The upload speed is what kills the ability for regular people to host servers. For a full 24 player server, CoD4 needs, at the least, a dedicated 1 meg per second (i.e. 10mbps) upload connection to handle a full 24 player server. Obviously, none of the commercially available lines could possibly meet that demand in South Africa. Obviously, if we are forced to host private matches in order to have 5v5 clan games, it will simply not work. 150+ ping is not acceptable for a competitive game.
2) Matchmaking and servers are indeed two seperate things. However, Bowler specifically states that "You're completely reliant on IWNet and
there is no dedicated server or server list" which implies that in this instance, they are not two entirely seperate entities. Lets not even mention the difficulty (impossibility?) of LANning with the game, if it is dependent on an internet connection and online servers.
3) Yes, the Xbox matchmaking service does indeed function like that (I have used it, okay? I'm not a total console neophyte

). However, from what Bowler said, it would appear that the IW matchmaking service isn't the same as the Xbox one.
4) I agree that we do need to wait for clarification. However, what Bowler said was pretty clear, and unless he mis-spoke himself massively, I think we still have a problem.
Some additional points I'd like to make:
In this case, the online play model for console does not translate well to PC, much the same as console controls often do not translate well to the PC port. PCs, frankly, have a much wider range of abilities than a console, and it makes a lot of sense to take advantage of those abilities. I understand that it takes a lot of time and money to do so, but if the additional abilities are not exploited, what is the point of even developing it for PC? Rather just stick to developing it for console, if that is the case.
I do sincerely hope we are wrong about this whole debacle. MW2 looks like it is going to be an excellent game. Frankly, though, the SP game will not be enough to justify the R500 price, and I am not interested in playing a game in which there is no competitive future, thanks to a lack of MP features.
PS. Zenbaas,
I also have absolutely no idea what you are getting at.