Considering how dodgy the game was, chances are it was just oversight on someone's part.
In this game, Ghost becomes the protagonist (if you choose to play as him) and Sparks is the always-present Plucky Comic Relief. Niobe is a fairly important supporting character in the movies, but her two subordinates were just background characters with extremely brief appearances.
THE MATRIX PATH OF NEO GRAPHICS MOD MOVIE
Trinity: Is that why so many saints are blind? Ghost: Like Augustine, I'm dedicated to a higher purpose.