No need to buy expensive TrackIR to play BF2 (and all its mods that use a running bf2.exe) with headtracking. All you need is an external webcam (Note: Integrated cams don´t seem to work. I recommed a minimum 2k resolution.) and this BF2_HEADTRACKING_PACK. Read the disclaimer inside: Although I never experienced any problems, I do not take any kind of responsibility for using my uploaded files. Have fun, aviation nuts!