i have EF2 for about 2 weeks now and i'm loving every minute of it. i'm a trekkie so wandering in all those amazingly well made maps is a treat!
i'm not really far in the game yet but i plan to play more next week.
btw, multiplayer modes are the basic ones but also bomb diffusal and there are a lot of 'mutators' for every gamemode (1 man ctf, sort of domination, instagib, classes like team fortress etc ).
There will however be a patch to fix some ctf issues and it seems that jumping is a little buggy in both singleplayer and muliplayer. ( sound fx is too late and the jump curve gets kinda warp-ish online ).
anyway, its the engine i've grown to love -q3a- and it runs like a dream and its star trek.