Command & Conquer: Red Alert 2 Cheats

Unlock Chrono Commando
Play as the Allied Army. You also need an opponent from the Allied Army, too. Build your Battle Lab as soon as it is available. Place it near your War Factory or your Barracks in case that your opponent is fond of tank rushes. Just be sure to protect your investment, as this is the key to unlock your Chrono Commandos. Once you have your Battle Lab online, train at least one Spy. Make him look like the enemy infantry. Then send him into the Allied Battle Lab of your opponent. As soon as the Spy has taken over the building, your Chrono Commando is available in your infantry list. A Chrono Commando has M16 Machine Gun and have C4 charges that can easily eliminate buildings. Chrono Commandos are better than Tanya and Navy SEAL because of these reasons:
1. They can quickly dispatch enemy infantry in one shot.
2. They can quickly take out enemy buildings with C4 charges.
3. They can quickly teleport around anywhere on the map by warping the space-time fabric, which is great for surprise attacks by sending a lot of them into the enemy base.
4. Even fifty GI's are no match against one Chrono Commando, Chrono Commandos are very quick bread-and-butter units.
5. The true power of Chrono Commandos really come through, try garrisoning them into key buildings where they can quickly chew up enemy infantry and tanks, and most of all, racks up veterancy. After all garrisoned troops are promoted, try getting them to the enemy base, destroying both infantry and buildings, proving yourself a single, outmatched opponent.
They are only expensive to produce that takes up to $1,000 per unit. Using them in maps with lots of Oil Derricks and Ore Fields is great! Go dispatch those enemy infantry and buildings!