So, here is the core of the unit - the 1st Argyle Rangers!
Over the centuries, the Rangers have become a hereditary command connected to the Laval family, who further became financially responsible for the unit. As such, the size of the unit has varied with the family's fortunes, and has shrunk considerably over the past century as the Laval family has become known more for politics and intrigue than martial prowess. While a Laval has always been nominally in command, it has increasingly been held by a poorer relation or distant cousin. At times when the Lavals have taken a more active role in the unit, like today, it is sometimes nicknamed "Laval's Legion."
The 1st Argyle Rangers, beginning as an over-strength battlemech battalion in the first succession war, has become in the 31st century a shell of its former self. As mechs were destroyed in combat, the Laval family replaced them with cheaper vehicles, transforming the unit into a combined arms force. Finally, after the disaster at Mallory's World nearly wiped out the Rangers, the now disinterested Laval family allowed the Rangers to become a mere combined arms company attached to the Argyle Militia.
Gently reminding his father's feudal overlords of his family's lapsed responsibility to field a combat battalion (not merely a company) for use by the AFFS, he forced his father to spend more of his money that he would have liked to restore the unit, and an ancient Marauder passed down from his illustrious ancestors. From this mech, he will lead the 1st Argyle Rangers to glory.
Some have asked Julian about the chosen paint scheme for the Rangers. Being intended as a combined arms force capable of detached service, some have asked why they haven't received a camo scheme. After explaining the pointlessness of painting camo on a 50 foot tall walking tank, Julian gives his real reason "I want everyone to know exactly who we are. I want the name of the 1st Argyle Rangers and Julian Laval to be on all of our enemies' lips."
The new core of the unit is largely made up of Julian's friends from the Albion Academy on New Avalon. Nobles, or at least monstrously rich, they have supplied their own mechs to refurbish the force.
Justin de Caen, piloting the Jenner.
Paul Fitzroy, piloting an ancient Crab.
Marissa Howard-Davion, bringing in the heavy ammunition with her family's Stalker.
The Rangers have integral air support, relying on nimble Sparrowhawks to protect their dropships.
The heavy armor: two Von Luckner Heavy Tanks.
Two medium Goblin tanks, which combined carry a half-platoon of infantry support.
And so the 1st Argyle Rangers are restored to active duty, and attached to the front line 7th Crucis Lancers as a nimble specialized force, ready to take on any task. For the glory of the Federated Suns!