"Fortitudo Imperatoris benedictus, qui docet manus meas ad proelium et digitos meos ad bellum." 

Rayvius Skalterion mouthed the prayer in the drop-pod, affirming his oath to battle in the Emperor's name. The reverse thrusters had just kicked in and he knew the time to wage war was once again at hand. He checked his bolter for the seventh time and curled his hand around one of the grenades at his waist.

"Inclina caelos tuos, Imperatoris, descende: exquisíta in omnes voluntátes ejus."

The drop pod slammed into the earth of Erinyes, the hatch opened with alacrity as Rayvius surveyed the immediate situation. Their enemies were Tau, xenos renown for their overwhelming firepower, their foreign strategy and their deluded zeal in the heathen belief in a 'Greater Good' other than that of the Emperor. There were six tau fire caste 'Shas'la' in front of him and one 'Shas'ui', accompanied by a Gun Drone, a heretical piece of techno-heresy; a semi-sentient and thoroughly alien interpretation of the ancient Men of Iron. They were severely disoriented by the concussive force of drop-pod's landing, and the blue spatter covering most of the alien squad hinted that one of the xenos had been crushed by the pod itself.

"Fulgura coruscationem, et dissipabis eos: emitte sagittas tuas, et consumerem eos."

He let fly his grenade, perfectly cooked, into the cyclopean helmet of the xenos sergeant, shredding him and his gun drone into gore and mechanical components. He fired five rounds off in rapid single shots; the shells blew off limbs and heads, and opened chest cavities to air in sprays of blue mist. His immediate surroundings secure, Rayvius took a brief moment to survey his surroundings beyond the first dozen meters. Lasfire arced from his right and blue pulses riposted from his left. 

"Libera me et eripe me de manu filiorum alienorum, quorum os locutum est vanitatem, et dextera eorum, dextera iniquitatis."

He turned to his left and located the closest xeno, eliminating him with a precision bolt between the shoulders. He repeated this again and again and again. He could fanitly hear cries of exultation from behind him.

"Beatus populus, cui Dominus est Deus Imperator."