Look for fan-made recreations of Rust or Firing Range .
Even in a browser-based "Unblocked" environment, the core gameplay remains recognizable: Call Of Duty - Unblocked Games
Many developers have ported classic FPS mechanics to WebGL. You can find "CoD-style" games on sites like Unblocked Games 66 or 76 . These often feature maps that look remarkably similar to classics like or Shipment . 3. Mobile Emulation Look for fan-made recreations of Rust or Firing Range