The title of this article is conjectural.
Although this article is based on official information, the actual name of this subject is pure conjecture.
Early in Gordon's visit of the ship, he was to come across a room filled with five tanks containing presumably "frozen" Combine Assassins, in apparently modified Combine Cells (the Raising the Bar concept art shows unmodified cells). The installation seems to have been "thrown" into the ship, since several levels around it are destroyed. Although the highest ceiling is not destroyed, its recalls the Sacktick/Headcrab shelling that was to occur before Gordon and Odell's visit of the ship.