Looking for a game to mod Flying+FPS

Weiser_Cain

I'm looking for a mod-friendly game that combines fps and flying game mechanics. *crosses fingers*

CheapAlert

i'm working on some gargoyle thing with the darkplaces engine, i'm just gonna abuse the swim physics and call it flying

Moz

the obvious would be the battlefield series.

cholden

UT2k4, Battlefield, and the upcoming Serious Sam 2.
All 3 feature FPS, flying game mechanics, networking, and top notch graphic support. Try playing each one to see what has the right feeling for what you want.