The action is viewed from a first-person perspective. Players move through urban buildings and underground areas, locate objectives, fight terrorists and other enemies, collect weapons and ammunition, and search for items needed to advance.

Levels are structured as maze-like missions with locked areas, switches, doors, and occasional environmental destruction. The campaign emphasizes surviving firefights and managing ammunition rather than offering separate multiplayer or character-progression systems.

Conserve ammunition for stronger enemies and use explosive weapons when several targets are grouped together. Search side rooms and damaged sections of the environment for supplies before moving into major combat areas.

Learn the layout of each mission and check for switches, doors, and objective items. Because enemy attacks can come from narrow corridors, retreating to a previously cleared area is often safer than pushing forward while low on health.