Lady Death Trevaline wasn't satisfied with the Brigand. She had big plans in store, and she definitely knew how to achieve them.
Using the profits from the brisk sales of the Brigand to various pirate outfits around the Periphery, she expanded the lines at Vengeance Incorporated, in order to produce three new designs, the Sepoy, the Bacchus, and the Highwayman.
The Sepoy uses mostly old technology components for its construction. Cobbled together from whatever the pirates had been able to steal from passing by jumpships, there have also been rumors and indications that Lady Death had a lot to thank the Word of Blake for her new production lines.
In fact, after the liberation of Terra, Comstar researchers uncovered incontrovertible proof of the Word of Blake's help in constructing mining facilities and mech factories in the Star Haven cluster.
From all indications, the defeat of the Word of Blake also coincided with Lady Death ordering the death of her 'advisors'. The end result was her total control over the four mech lines.

The Sepoy is the fire support mech for pirates. While the heavily ammo dependent nature of the LRM launchers runs contrary to the modus operandi of most pirate outfits, the efficiency of the mech attests to their inclusion.
An extended range PPC provides reliable striking firepower in addition to the missile racks. The advantage of the PPC is that it can fire as long as possible in a fight, which is an invaluable advantage.
11 double heat sinks provide just enough cooling for the Sepoy to fire all its long range weapons without overheating too much. In fact, the mech is fearsome at long range, with a damage potential unmatched by few other Inner Sphere designs.
Up close, a battery of medium lasers can put out a steady barrage of laser fire.
The only real weakness of the Sepoy is its armor protection. With only 80% of its theoretical maximum, the Sepoy can be taken down with a few good hits.

Warrior Giselle 'Small Scorpion'
A young girl accepted into Lady Death's band at the age of 18, Giselle has since earned the monicker of 'Little Scorpion' for her prowess and temperament, remarkably similar to Paula Trevaline herself.
She has killed at least 13 mechs in her Sepoy, named 'Venom Kiss'. Rumors are rife of her being Paula Trevaline's granddaughter, but anyone who is caught speaking of such things in either woman's presence would often find themselves wishing they had kept their traps shut.

Sepoys have been spoted with various Periphery bands in and around the Taurian Concordat and the Outworlds Alliance.
Several Sepoys fought in the Word of Blake divisions found on Dante, which brought to light the links between Lady Death and the Word of Blake.