Command & Conquer 3 Tiberium Wars

Complete the following achievements to unlock Xbox Live Gamerscore points.

Complete the GDI campaign.

Complete all of the single player campaigns.

During the last GDI campaign mission you have to choice to use Boyle's Liquid Tiberium Bomb. To view the "bad" ending, use the bomb. To view the good ending, do not use the bomb.

This is the mission where you do not have enough power to activate all buildings. First, power down the Barracks so you have enough power for all ground defenses. Next, build about ten Predators and destroy the War Factories of the northeastern Nod base. This will put down the enemy armor coming from that direction. Sell the Guardian Cannons and use the surplus power to activate the Barracks and the AA Guns. When you go for the reinforcements, put APCs to the roads on the western edge of the map to prevent Militant Rocket Squads from garrisoning the buildings on your way back. When the MCV reaches your base, you have essentially won the mission. Of the remaining Nod bases, the southwestern trains infantry only and is thus of relatively little threat. The southeastern base attacks with aircraft. The cliff itself is impassable to ground units (cannot use Mammoth tanks) and also is heavily defended by SAM Turrets (cannot use Orcas). Nod will build about a dozen Venoms with laser cannons which will run through Predators fairly quickly. Also the base is also defended by Stealth Tanks. The best tactic is to build a Surveyor. Fly it to the northern undefended part and deploy it with a group of AA Guns. Then, lure out the Venoms. When they have been destroyed, raze everything to the ground, starting with the Air Towers.

Use the following trick to temporarily detect stealth. You must have an airfield with at least one Orca. You also need the Sensor Pod upgrade. Target the units you want to detect stealth, and drop a Sensor Pod on them. The pod will detect stealth, and your unit will react.

Say "No" to do the tutorial. After obtaining the achievement, you can then go back and do the tutorial, getting the 20 point Rookie No More achievement. If you do the tutorial first, you will be forever unable to get "Mister NO It All."

Pause game play while playing as NOD, then press Left, Right, Up(3), Down, RB, LB(2), B. Note: This does not work in Skirmish or Career mode.

Use the following attack combinations in Skirmish missions.

Pitbull
Predator Tank
APC with a Grenadier Squad inside
3 or more Rifleman Squads
3 or more Missile Squads
2 APCs with Rifleman Squads inside
2 APCs with Missile Squads inside
2 Grenadier Squads
2 Rifleman Squads
2 Missile Squads

Note: This works best in Skirmish mode. Get fifteen Predator Tanks and get the Rail Gun upgrade at the Tech Center. Get an Airfield if you do not already have one. When you have about $5,000 highlight all of your Predator Tanks. Call in Ox Transports to carry the tanks to the entry of your enemy's base.

Build a War Factory near the place you want to defend. Then, build Mammoth Tanks and have them hold position in the area of the War Factory. They will get repaired every time they are damaged and will increase in rank. When it is time to destroy your opponent, send in your ranked up Mammoth Tanks.

As you start the game, gain the ability to build both Mammoth Tanks and Juggernant Walkers at a fast pace (about three War Factories) and get a massive array of base defense turrets. Build nine Mammoth Tanks and three Juggernants (three Mammoths and one Juggernant per factory). You can also use the Shock Trooper Drop pods to bolster the anti-infantry capabilities. This squad will be able to easily level any enemy base in about three minutes. It is recommended to destroy the superweapon first as in any battle. NOTE: This is best done in Skirmish mode on the Unfair Advantage map starting from the top.