Editing Quake II (section)

===Single-player===
The single-player game features a number of changes from ''Quake''. First, the player is given mission-based objectives that correspond to the storyline, including stealing a Tank Commander's head to open a door and calling down an air-strike on a bunker. CGI [[cutscene]]s are used to illustrate the player's progress through the main objectives, although they are all essentially the same short piece of video, showing a computerized image of the player character as he moves through game's levels. Another addition is the inclusion of a non-hostile character type: the player character's captured comrades. It is not possible to interact with these characters, however, as they have all been driven insane by their Strogg captors.

The game features much larger levels than ''Quake'', with many more wide open areas. A hub system allows the player to travel back and forth between levels, which is necessary to complete certain objectives. Some of the textures and symbols that appear in the game are similar to some of those found in ''Quake''. Enemies demonstrate visible wounds after they have taken damage.