available on GOG.com , which includes the base game and both expansions ( Spearhead and Breakthrough ).

64 MB OpenGL capable video card (DirectX 9 compatible) How to Install and Run on Modern Windows

The primary concern with compressed editions is the loss of fidelity. However, because Allied Assault was built on the id Tech 3 engine (Quake 3 Arena engine), it relies heavily on procedural texturing rather than massive 4K asset files. This makes it highly compressible with minimal visual loss.

Open the main game directory and navigate to the main folder.