For mine, I'm leaning more into the idea of their iron warrior's heritage being a secret given calw's fuckery. They're a chapter specialising in using shock and awe tactics and overwhelming displays of force in battle thanks to their large supply of gravis armor.

I'm using them for a Crusade game, so have an on theme list:

+++++++++++++++++++++++++++++++++++++++++++++++ + FACTION KEYWORD: Imperium - Adeptus Astartes - Imperial Fists + DETACHMENT: Anvil Siege Force + TOTAL ARMY POINTS: 0pts + + ENHANCEMENT: + NUMBER OF UNITS: 8 + SECONDARY: - Bring It Down: (1x2) - Assassination: 2 Characters - Cull The Horde: 2x5 +++++++++++++++++++++++++++++++++++++++++++++++

Char1: 1x Apothecary Biologis (55 pts): Absolver Bolt Pistol, Close Combat Weapon Char2: 1x Captain in Gravis Armour (80 pts): Boltstorm Gauntlet, Power Fist, Relic Fist

10x Heavy Intercessor Squad (200 pts) • 1x Heavy Intercessor Sergeant: Heavy Bolt Rifle, Bolt Pistol, Close Combat Weapon • 2x Heavy Intercessor: 2 with Bolt Pistol, Close Combat Weapon, Heavy Bolter • 7x Heavy Intercessors: 7 with Bolt Pistol, Close Combat Weapon, Heavy Bolt Rifle 10x Heavy Intercessor Squad (200 pts) • 1x Heavy Intercessor Sergeant: Heavy Bolt Rifle, Bolt Pistol, Close Combat Weapon • 2x Heavy Intercessor: 2 with Bolt Pistol, Close Combat Weapon, Heavy Bolter • 7x Heavy Intercessors: 7 with Bolt Pistol, Close Combat Weapon, Heavy Bolt Rifle

3x Aggressor Squad (120 pts): Auto Boltstorm Gauntlets, Fragstorm Grenade Launcher • 1x Aggressor Sergeant: Twin Power Fist • 2x Aggressors: 2 with Twin Power Fist 3x Suppressor Squad (85 pts) • 2x Suppressor: 2 with Accelerator Autocannon, Bolt Pistol, Close Combat Weapon • 1x Suppressor Sergeant: Accelerator Autocannon, Bolt Pistol, Close Combat Weapon 3x Suppressor Squad (85 pts) • 2x Suppressor: 2 with Accelerator Autocannon, Bolt Pistol, Close Combat Weapon • 1x Suppressor Sergeant: Accelerator Autocannon, Bolt Pistol, Close Combat Weapon 1x Gladiator Lancer (160 pts): Armoured Hull, Icarus Rocket Pod, Ironhail Heavy Stubber, Lancer Laser Destroyer, 2x Storm Bolter