Sir_Brizz sends this news from the UT2003Mods mailing list. Epic's Tim Sweeney has revealed that, in fact, UT2003 and UT2004 will not be network compatible. That means that UT2004 players won't be able to play on UT2003 servers as originally planned.
Networking won't work between UT2003 and UT2004. We had initially plannedto support that, but the network code has changed so much in order to
reduce bandwidth, support vehicles, and increase performance, that we couldn't
keep
the two games network-compatible.
-Tim
Networking won't work between UT2003 and UT2004. We had initially plannedto support that, but the network code has changed so much in order to
reduce bandwidth, support vehicles, and increase performance, that we couldn't
keep
the two games network-compatible.
-Tim