Tetra

Two Tetras of the T'au sept.

The Tetra is a Tau speeder used by Pathfinders to range ahead of their Cadre.

They are primarily used for reconnaissance and infiltration; a pair of Pathfinders will take one (or more frequently, four Pathfinders will take two) to ride out towards the enemy and scout them out. They send information back to their Cadre to help their leader plan the attack. Then, when the main force arrives to engage the enemy directly, the Pathfinders mount back up and join the fight.

Don't worry about the twin-linked pea-shooter in the nose. It's the periscope of doom up top that really matters.

Tetras do not have much armor or firepower (in fact, the two Pathfinders themselves pack more heat than the speeder), but they aren't meant for direct combat. What they have is a high-intensity markerlight that lets them call up to 4 seeker missiles each on anything they can see, and a marker beacon that helps them guide Deep Striking units to the battlefield.

Model

The Tetra model was created by Forge World for Imperial Armour Volume Three: The Taros Campaign, which contained the rules for the Tetra. The rules were rather lackluster at the time, as the markerlight was only single-shot rather than the Heavy 4 "High-Intensity Markerlight" supplied in the update.