One path preserves a masterpiece. The other burns it down.
A "wallhack" in Call of Duty 2 (CoD2) is a form of cheating that allows a player to see other players or objects through solid surfaces like walls, floors, and doors. Technically, this is often achieved by manipulating the game's rendering engine—the engine derivative—to disable depth testing for player models or by injecting code that draws overlays (ESPs) over them. Technical Overview of Wallhacks call of duty 2 wallhack