Suggested by Sauroposeidon
On a battlefield littered with the bones and cracked armor of the dead and dying, a lone Dreadnought of the Imperium of Man stands, smoke rising off it from plasma scorch marks, paint burned but nothing more. It’s own body as still as the countless corpses around it while it surveys the carnage. The thunder of cannons in the distance is hardly noticeable, and above in a red lit sky, the burning hulk of a Manta carves through the thick smoke, pouring flames feed rivers of black soot back in to the smothered sky. As the doomed vehicle passes over head, causing the very ground to shake, a single entity jumps for it, the sole survivor of whatever brought the great vehicle down. Landing hard after a drop that was just a bit too far, a Tau Broadside crouches slightly to stabilize itself.
As it rises back in to a proper posture, the veteran fire caste warrior turns its head and catches sight of the Dreadnought, just over 500 meters away. Beyond the hill strewn hellscape of their battlefield, well behind the Dreadnought, a phenomenal explosion lights the area briefly as the Manta finally makes impact. Even as the Tau beholds his new enemy, the behemoth machine turns it’s entire torso towards him, framed by the gusting winds of the Manta’s blast, buffeting the Dreadnought with dust and sand.
The ancient warrior permanently housed inside brings the Broadside in to its field of view and recognizes it in the distance as the enemy immediately. Between them lay a cratered field of blasted and flattened hills, with the rubble of shattered buildings providing occasional cover. Fires burn here and there, providing thick pillars of smoke cover that twist and writhe to the whims of the wind.
Which of these phenomenal machines of war comes out of this duel the victor?