To produce a more authentic product, developers from Innerloop Studios partnered with a famous Special Air Service operative Chris Ryan who served as a consultant on Project IGI 2 game.

The difficulty of the campaign can be set at the start of the game, which will impact not only the AI of the opponents but also the starting number of gear and ammo and a number of available mid-mission savegames. Open combat is not encouraged, forcing players to often first rely on stealth, subterfuge, and non-detection. The entire singleplayer campaign is set across 19 large missions, with the presence of cutscenes before and after each of them. In addition to a singleplayer, Project IGI 2: Covert Strike game also introduced a limited multiplayer mode. Upon release on the market in early 2003, the worldwide media and players saw this title as a great improvement upon the original, citing better rendering performance, increased visual fidelity, better AI, more varied mission types, multiple paths to finish almost every missions, better narrative style, and inclusion of mid-mission savegame system which was completely absent from the first game. Built on the enhanced version of the Joint Strike Fighter engine that was present in the original, the sequel Covert Strike moves the player to the more visually spectacular locations in Russia and the South China Sea, where a rogue military general tried to enact a plan to fire a take control over a deadly combo of EMP bomb and space-worthy rocket system. Project IGI 2: Covert Strike is a sequel to the well-received tactical shooter Project I.G.I that was able to enhance every single element of the original, and provide to the gamers larger and more ambitious game that even included an online multiplayer component.

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