The Spider-Man mod has been updated. His voice file has now been separated out of x_voice (huge thanks to tubularspacedude), and instead exists in his own sound file, spider_m.zss. This allows him to have custom voice packs
If you have the previous version of the mod, you must delete spider_m.zsm in sounds/eng/s/p for the new sound file to work. You will also need to download the latest x_voice.