Hints
Firestorm defense
Play as the GDI. If your enemy likes air units or missiles, surround your base with the Firestorm Wall at a distance from your base, backed up with RPG Launchers. Whenever aircraft or missiles are detected coming toward you, turn the Firestorm on. When aircraft attack, wait until just before they cross the Firestorm line so that they cannot turn away before they are hit. Do not worry if the Firestorm is attacked by the enemy aircraft -- it is pretty tough. Just bring some MRLS in to assist destroying the aircraft.
Laser Fence Snap
This is the NOD version of the Firestorm Defense. When an enemy approaches the fence, turn off a section of fencing for him to pass over. As soon as the opponent's unit is on the fence, re-activate it and you will have a one-hit kill. This works the best when your fence is stealthed and you are playing against a human opponent through a modem or network.
Drop Pods
When fighting the GDI you may hear machine guns firing. This is normal because those sounds were just Drop Pods. The Drop Pods have people in them that have gold stars (which indicates that they are very good).
Cyborg Reaper
Build a Cyborg Reaper and send it to the enemy's base. Walk on Tiberium and stay there. The enemy will shoot at it, but the Tiberium will heal it quickly.
Completing the last mission
Do what you would normally do, except wait until the Defender is far away. Shoot a missile or Ion Cannon directly at it, while sending Banshees or Orca Bombers to attack it.
When playing as the NOD, get a Mobile Stealth Generator (MSG) and deploy it right behind Cable and put some units around it. Then, destroy the power so that the defender is activated. Next, wait until it is afar. Then with all of your cloaked units, attack Cable. The defender will never get back to you in time, allowing you to successfully complete the level.
Visceroid baby to adult
The only way a baby Visceroid can turn into an adult is when two babies merge together.
NOD mission 9 (Core Of The Problem): Defeating Cabal
When you have destroyed Cabal's missile silos and "borrowed" his Hunter Seeker Droid (cloaked at the top of the map), kill the Cyborgs around his Firestorm Defense protected core. Build six or more Banshees, five or more Artillery and about eight Tick Tanks. Have the Artillery attack Cabal's core. They will deploy and start shooting at Cabal. The Firestorm Defense will stop their bullets (which is expected for this trick). Next, deploy the Tick Tanks in front of your Artillery carefully, as they may get shot by his Obelisks. Capture all three Cabal Control Stations. This will cause Cabal the mutter something, then the Core Defender will start shooting the Tick Tanks. Quickly have your Banshees attack the Core. You should now have Artillery shooting the Core as well as the Banshees while the robot is distracted, blasting your Tick Tanks. This just gives you enough time to blow the core into oblivion. Although the "Mission Accomplished" will appear, the robot will still be running wild.
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