The campaign is played from a first-person perspective. Missions assign objectives such as advancing through combat zones, eliminating hostile forces, infiltrating locations, rescuing personnel, and operating vehicles.

The player aims and interacts through the Nintendo DS touchscreen while moving through linear stages. Mission types vary with scripted combat, stealth sections, turret or vehicle sequences, and occasional equipment-based tasks. Progression is campaign-based rather than built around character levels or equipment statistics.

Use cover and move between positions instead of remaining exposed during firefights. Watch the touchscreen for interaction prompts and examine the environment before advancing.

Stealth sections reward patience: avoid unnecessary shots, identify threats first, and follow the mission objective rather than treating every encounter as an open battle. Vehicle and turret segments are usually short, so prioritize targets and conserve attention for the next objective.