A significant portion of “highly compressed” Halo 2 files were malicious. A 2012 study of torrents on The Pirate Bay found that 43% of executables labeled “Halo 2 Highly Compressed” contained:

Downscaling the epic 1080p cinematics to lower resolutions or higher-efficiency formats.

It introduced the ability to dual-wield weapons and hijack moving enemy vehicles. 0;2a; 0;7a;0;7d3;

: These versions often take much longer to install because the computer must "decompress" the files back to their original size to run.

Halo 2 Highly Compressed

Downscaling the epic 1080p cinematics to lower resolutions or higher-efficiency formats. halo 2 highly compressed

It introduced the ability to dual-wield weapons and hijack moving enemy vehicles. 0;2a; 0;7a;0;7d3; A significant portion of “highly compressed” Halo 2

: These versions often take much longer to install because the computer must "decompress" the files back to their original size to run. halo 2 highly compressed