The order was given, and Rayvius strode forth, picking his targets and bringing swift death. Within seconds, he had racked up a dozen more kills. He could hear the cries of those he didn't kill outright, and smiled: one of the wounded tau was crying out to a his squad, betraying their neatly hidden position behind a ridge. They were obviously trying to ambush his Battle-Brothers once he passed. A frag grenade over the ridge saw an end to that. He jogged up to finish off the survivors, but spotted a much more deadly threat just over the ridge, and called it out to alert his Brothers. 

"XV88! Get down!"

It was one of the newer models, the one that carried a single railgun in both hands, a more deadly threat than the older model with the railguns mounted on its shoulders as the pilot could aim its primary weapon with more accuracy. Rayvius ducked as the ridge top exploded in a shower of dirt, followed microseconds later by the hypersonic crack of the projectile's passing. It took only one hit from those to end even an astartes, and were some of the most deadly tools used by the accursed tau. Ray leapt clear of the explosion, unharmed by the railgun, but dogged by Broadside's shoulder mounted plasma rifles. The twin-linked railgun began to whine as it readied a second shot. Rayvius dove into a nearby trench as the hypersonic crack followed him in. 

Rayvuis was unharmed, but his choice of cover was occupied by tau. He dropped his boltgun and drew his bolt pistol and combat knife, assessing threat values in split-seconds. The xeno sergeant was first to go with a bolt between the eyes; his plasma carbine could be wielded with much more dexterity in close quarters. A handful of the fire warriors charged him, using their long rifles as clubs to little avail, only buying time for their comrades to flee. Combat knife and bolt pistol saw to their end. Another hypersonic crack rang out, this round not aimed at him. He retrieved his boltgun and readied himself for the next crack, preparing to lay down fire on it after its next shot.