Prototype 2 is notorious for crashing on modern hardware. If you are using this release on a recent Windows version, you will likely need these common community fixes:
After installation, go back to the mounted image/folder and find a directory typically named prototype 2 multi7prophet exclusive
These packs provide additional abilities like the Warp Vortex and Anti-Gravity Field. Prototype Wiki Safety Note: Reddit's CrackSupport Prototype 2 is notorious for crashing on modern hardware