The 101st Betic Dragons became known throughout the Goanx Sub-sector when they came to the aid of the Destroyers Space Marine Chapter. The Astartes had been defending a volcanic Death World against a Heretic Astartes warband of the Crimson Slaughter. A pack of Helbrutes had destroyed many of their Attack Bikes, and Heldrakes crippled two of their Stormtalon gunships.
As the Betic Dragons' Valkyries launched assaults on the Heldrakes, keeping the fearsome daemon-craft engaged, the Scions were able to make planetfall without being noticed. Their Taurox Primes immediately veered towards the Helbrutes and enraged the maddened walkers with hammering Battle Cannon fire.
The Helbrutes lumbered after the Imperial vehicles, which sped up the side of a volcano. The Chaos war engines had already been damaged by the Destroyers Space Marines, and despite their rage they could not match the speed of the Militarum Tempestus vehicles.
The Scions disembarked and concealed themselves amidst the debris on the lip of the volcano. Once the Helbrutes had caught up with the Taurox Primes, squad after squad of Scions savaged the beasts with criss-crossing blasts of hot-shot weaponry and hurled Krak Grenades. Such was the sudden violence of their assault that their foes were driven into the bubbling magma of the volcano itself.
The Betic Dragons' victory provided the Destroyers with the opportunity they needed. The warriors of the Adeptus Astartes surged from their positions and proceeded to obliterate the surrounding squads of Chaos Space Marines, driving the Crimson Slaughter warband back into the Warp.
The Tempestus Scions of the 101st Betic Dragons primarily wear black fatigues and Carapace Armour with medium gray trim. Their Slate Monitron and Omnishield Helms are also black. Their poleyns (knee guards) and pauldrons (shoulder guards) are red. When not in battle, these Scions will often wear a red beret in lieu of their usual Omnishield Helms.
The 101st Betic Dragons bear a symbol said to be inspired by the beast of myth after which they are named. Stylised as a flying dragon as seen from above, the symbol doubles as a representation of the airborne strike teams for which the Dragons are rightly famed.
- Codex: Militarum Tempestus (6th Edition), pg. 23