The year is 2760, on the eve of the Amaris Civil War. You have received an order from SLDF High Command to form an Independent Regiment to track down and subdue the rising tide of houseless "bandits" and restless Periphery forces that will not submit to the light and reason of the will of the First Lord and the peace of the Star League.
Such regiments are three battalions of Battlemechs (plus support) at full strength. That's nine companies for a total of 108 Mechs, but it can be understrength if you like. The regiment can be Royal or Regular. You begin by requesting what Mechs from the SLDF Quartermaster?
Hit me with your best shot
I did this for a campaign once only it wasn't just any regiment, it was a specific Royal Hussar regiment.
I have it on a spreadsheet somewhere but here it is from rough memeory.
Designed for Rapid Response but Hard Hitting.
HQ Co:
Atlas, Cyclops, Battlemaster, NightStar
Marauder, Thug, Warhammer x2
Spartan, Crab, Wolverine, ShadowHawk
1st Heavy Cavalry Battalion:
Alpha Company = 4 Each - Pillager, Highlander, & Shogun
Beta Company = 4 Each - Flashman, Champion-1N2, Champion-1Nb
Gamma Company = Mongoose + 3 Hussar and 4 Each = Spider, Locust
2nd Battle Battalion:
Delta Company = 12 x Excalibur
Epsilon Company = 12 x Guillotine
Zeta Company = 12 x Griffin
3rd Striker Battalion:
Kappa Co = Exterminator, Phoenix Hawk, Specter, Ostscout, + 4 Each - Lynx, Starslayer
Eta Co = Mongoose + 3 Hussar and 4 Each = Spider, Locust
Iota Co = 6x PhxHk-LAM, 6x Stinger-LAM
4th Fighter Wing:
6 Each = HellCat-II, HammerHead, Samurai
5th Mobile Infantry Battalion:
Phi = Jump Infantry *4
Pi = Motorized Infantry *4
Chi = Maxim x8, Beagle x2, Zephyr x2
Omicron = Cobra x4, Nightshade x4, Cyrano x2, Ripper x2
6th Armored Support Battalion:
Rho = Fury + 11x Alacorn-VI
SigmaCo = 4 Each - Beagle, Zephyr, Kanga
Tau Co = 4 Each - Marksman, Thor, Chaparral
Fleet Assets:
Avatar Class Cruiser w/ 6 Dropships
Overlord, Overlord, Colossus, Titan, Leopard x2
9 Fighter Squadrons:
(Avatar = Stuka, Thunderbird, Corsair, Zero)
(Titan = HammerHead, Samurai, Hellcat-II)
(Overlords = Trident *2)
(Remaining Vee/Inf bays on the Colossus belongs to the logistics group)
108 Mechs
12 LAMs
54 ASF
60 Combat Vehicles (Tanks, Hovercraft, IFVs, Artillery)
8 Infantry Platoons w/ Transports above.
4 more platoons (Techs/Medics) & 12 vehicles (Cargo, Ammo, Fuel, Repair, etc) in the non-combat "Technical Logistics Group"
... They probably need more vehicles over all for logistics but those are stored as Cargo & not in the ready to roll out bays.
Designed to deploy quickly & operate from a single supporting warship with enough fighters to clear a path to land the entire unit in a single LZ with 2 smaller dropships to deploy the LAM Company for recon & surgical strikes quickly.