Set during the conflict in the original Red Alert 3, Southern Rising will introduce two new factions, the Forth and the SLIM, which are also intended on global domination and freedom.
The TOL-643AH Sabre hover tank is the ultimate line of armored combat ever to be made available for the Forth, and perhaps superior even to the creative, yet ingenious design of the Imperial Tsunami Tank. Projected to possess stronger firepower, resilience and a higher sense of mobility, the four stabilizers installed in the edges of the tank allow for a free travel over the hard-crossing terrains of Nova Luna, the Forth's stronghold, water and other features that would slow down a normal threaded tank. It's armor alloy is made of an unknown metal ever encountered on the moon, the Ferasteel, capable of withstanding the firepower of even the mighty Soviet Apocalypse Tank. However, some glitches remain about the use of this seemingly powerful battle tank, as it's main weapon, the 97mm Rail Gun appears to be firing slowly while mobile. Scientists have temporarily circumvented this problem by installing ground harnesses that allow for landing and entrenchment, transferring the power of the engine and stabilizers to the cannon for a rapid rate of fire, but keeping the tank perfectly still and very vulnerable to very accurate enemy targeting and air strikes.