Another massive contribution made by the Pacific Front to the Allied cause came in the form of the Battle Tortoise. This moving citadel is capable of carrying several infantry units and allowing them to lead fire from its many operable gun ports, along with its heavy machine gun to combat infantry and missile launcher against armored and airborne targets. Due to its numerous layers of reinforced armor plating, the Battle Tortoise is not only capable of soaking up tons of damage, its sheer size allows it to simply crush smaller vehicles under its enormous weight.
Of course, the Tortoise has its drawbacks: the immense weight of the vehicle makes it quite cumbersome. Combined with the cost of outfitting the Tortoise with infantry to provide extra firepower, and the unit's susceptibility to mind control, the Battle Tortoise can prove to be very costly if destroyed or captured by the enemy.
The Battle Tortoise has received a significant change from the vanilla Battle Fortress; namely, its 5th slot is replaced by a rocket launcher that gives the Battle Tortoise anti-vehicle and anti-air capability.
The Battle Tortoise may not have the speed of the Abrams Tank, or the instant kill weapon of the Charon Tank, but it has one advantage that its other equivalents don't have: its customizability. The Battle Tortoise can have numerous combinations that suit the battle well; for instance, 2 Guardian GIs and 2 Siege Cadres for maximum building effectiveness while still having defense against mechanical units. Even the Pacific Front-exclusive Suppressor is allowed to enter the vehicle, giving the Battle Tortoise and the rest of a Pacific Front armada longer survivability than usual.
However, the immense cost of equipping even just one Battle Tortoise with infantry (especially Chrono Legionnaires and Suppressors) prevents mass production of these behemoths, so a commander must not sacrifice them needlessly as they would do with the Battle Tortoise's counterparts.
- The Battle Tortoise makes its first appearance on the battlefield in Think Different as part of the enemy Pacific Front forces. In this particular mission, the enemy (but not the player) can produce Battle Tortoises without the need of a Tech Center.
- A Battle Tortoise serves as the destination of the KI Scientists in The Gardener. The objective of the mission is to locate all of them and load them into the Tortoise, at which point it will be chronoshifted to the Black Forest.
- Continued from the end of The Gardener, the same Battle Tortoise appears in Panic Cycle. The Chronoshift didn't go as well as expected, and it must be escorted, through Russian and Chinese forces, to the SteinsTech Laboratory to deposit the scientists.
- An abandoned, damaged (at yellow health) Battle Tortoise can be found, captured and used by the player's Russian forces in Noise Severe. The Soviet General remarks that it must have been left behind by Pacific Front forces when they evacuated the area.
- We will lead the charge!
- Battle tortoise on the alert!
- Let's make a war path!
- Together we shall destroy them!
- Victory will be ours!
- Prepared for war!
When ordered to move
- The tortoise sets forth!
- We are invincible!
- To battle!
- We shall not waver!
- Hai! It is our duty!
- We go to fight!
When ordered to attack
- Leave none alive!
- TO VICTORY!
- Open fire!
- We will destroy them!
- They lack what it takes!
- We make our attack!
- They will not survive!
- Azri_Apoc is credited as the voxel artist for Battle Tortoise.
- The Battle Tortoise's rocket launcher firing sound uses the Nod Militant rocket squad's from Tiberium Wars.
- Prior to v3.3 the Battle Tortoise was originally called Battle Fortress and it used the original Battle Fortress voiceset from Yuri's Revenge. This was later changed because a Scottish accent is not suitable for a Pacific Front unit.
- Some of the Battle Tortoise's quotes are borrowed from various Empire of the Rising Sun units from Red Alert 3.