I loved this game back in the day. I put so many hours into the assault campaigns as well as online play; I remember playing several community levels where you'd have to drive a vehicle across maps akin to Trackmania (but without the insane speed) and the other team would do what they could to stop you.
Really wish Epic would make a modernized one; while UT3 was fun, it just wasn't the same as UT04. But I don't see Epic making that style of game ever again.