|The following is based on content cut from Red Alert 2 and has not been confirmed by canon sources.|
Soviet spider tank is a vehicle cut from Red Alert 2.
This massive multi-legged armoured vehicle was apparently supposed to fill the gap left by the first generation Mammoth tank. The gap was apparently filled by the Apocalypse tank.
The Spider Tank was supposed to appear in Red Alert 2, but was cut from the game at an unknown time.