Build a missile silo. When the missile is ready, sell the silo and
immeidately launch the missile. If you were quick enough,
the sale will have stopped and some troops will come out of the silo.
Extra Range Grenadiers
In multiplayer or the regular game, play as the soviets. Next, build a grenadier and have him force fire on the ground around him. Right before he throws it, click anywhere on the map and the greade will SAIL over to that point.
Selling Tanks & Harvesters
If you want to sell your vehicles, like the ones you don't want or you are out of money and need that last little bit then this is the code for you. Here is what you do: build a Repair Facility and drive a tank or vehicle onto it and while it is on the very edge put the sell button on it and it will sell. (The sell icon will be green if you catch it at the right time.) My suggestion is to have the sell button ready.