The BF2142 demo hasn't even been out a week, & Koroush has already posted the TweakGuide for it. I personally think that... well, I don't want to get started on what I think of EA right now... I will say that if you're looking forward to this game, good luck.

"Although tweaking BF2142 is similar to BF2, there are several important differences, a range of changed commands, and of course a series of problems which people may not experience in other Battlefield games."