Command & Conquer: Red Alert 2 Cheats

Trojan' Bus
This only works for the Soviet side. After you get the right equipment to obtain a Yuri, train him, then find a simple bus. (Usually found in the maps with the most buildings)

'The Alamo' is a good map with buses on the bottom right corner.

Anyway, take the Yuri, and have him "attack" the bus (with his mind-controlling technique) and then you can send up to 5 infantry units of any kind.

You can send it to a/an enemy's base, and his guns (turrets/units) will not shoot at it, unless the user commands them to.