I tend to avoid posting here, but here goes -
Please listen webhead (not saying that your won't
)
I want to put things into perspective, TGC aren't big game developers or even big game engine developers, they started out as a very small group of coders trying to make game making easier for hobbyists with their products and as more money came in they grew.
They're not a big game company with the funding, staff or time to make a big DX 10 first person game engine that's multiplayer. It's not about fear. Multiplayer can be quite complex and would have added a lot of time to their release date and they want to keep their customers happy by releasing it.
I'd also mention game engines can be very expensive, it's people like TGC who try to deliver them cheaply and with the best quality they can. Look at professional engines that do have multiplayer and tonnes more features (not to mention a lot more difficult) they're not £50, they're not even £500, they can go into 1000s and the big boys, well the go into 10,000s and more. Your 'indie' and 'hobbyist' engines are much cheaper, but they don't have all the great features the big ones have...FPSC X10 aims to produce high quality single player DX10 games (DX10 meaning Vista only, as DX10 is only available for Vista) with ease for the most inexperienced game makers...
Torque Game Engine advanced might be closer to your needs (it has multiplayer) but it is a lot lot harder to learn and not to mention more expensive...(And this is probably the closest sort of thing you'll get to your needs with the quality of FPSCX10)
And please man, don't come on the forums to slag the company off, they've worked hard and they can't please everybody's needs. I know people are shouting insults back, but then somethings members take very personally and such things as these are one of them.
You may be an avid multiplayer gamer, but FPSCX10's target audience aren't. I mean, you wouldn't buy Oblivion and go onto their forums stressing its lack of multiplayer. To be honest, I'm one of those gamers who only players single player.
Also, don't let negative comments get to you, it's some people's way of making a point.
Exit Pursued by man-bear-pig