I generated a random chapter using the
FFG DIY chapter generator, ended up convincing myself to start marines!
Wanted to run it by everyone and see what everyone thought of it.
The Silver Lances Chapter
Strategic Prognostication: The Ghoul Stars
Founding: 41st Millennium 26th Founding
Primogenitor Chapter: The Salamanders (There was a 1/100 chance of this....and I rolled a 100)

Gene-Stock: A New Generation: Some ties to Salamanders, no agility loss or black skin, still red-eyed
Demeanor: Cleanse and Purify: Favor the utter defeat of their foes.
Gene-seed deficiency: Disturbing Voices (They seem to have an echo on them when they speak)
Chapter Characteristics: Utilize Squad Tactics and Lightning Assaults
Figure of Legend: 1st Chapter Master: The hero led a glorious campaign against a rebel army, defeating the foe and bringing an entire sector back into the light of the Emperor.
“Selvarus Grecius”
Planets: Hive World, Feral World, Uninhabited World (Chapter Base)
Trial: Combat against a battle brother
Home Planet: Tarethia (Ice Planet)
Relationship: Distant Rule
Codex Belief: Divergent Chapter
Combat Doctrine: Lightning Strikes
Chapter Specialty Restrictions -No Assault Marines
Special Equipment
Preferred Fighting Style:
-Rhino/Bike Assaults into enemy entrenched positions, disgorging storm-bolter, combi-weapon and heavy flamer wielding Tactical Marines into Close Quarters firefights/ Drop pod assaults into boxed in opponents, using heavy guns to clear landing sites just before landing, using bikes to create favorable firing lanes.
Chapter Beliefs
THE EMPEROR ABOVE ALL
Chapter Strength
Nominal
Chapter Friends
Imperial Guardsmen
Chapter Enemies
The Orks
Heraldry
A pair of ornate crossed lances
Livery
Silver armor, red pauldrons with gold trim
The Phalanx is the Silver Lancer preferred attack pattern, involving outriding and outflanking attack bikes harrying the enemy and boxing him in, and then performing a powerful thrust into the heart of their formation’s lines via Rhino, Razorback, or even Land Raider. The Phalanx guard are the men who ride within the rhinos, armed with combi-weapons, storm-bolters, and heavy flamers, they disgorge into brutal close-quarters firefights, using squad tactics to overwhelm their pressed foes. Leaving nothing alive in their wake, they advance, with close support from their vehicles, to take the fight to the enemy.
The Phalanx Praetorians are the men on attack bikes who harry the enemy into a position for the guard to strike, usually after an artillery barrage. They wield heavy bolters or multi-meltas, along with power lances and other close combat weapons for the charge.
This is vaguely reminiscent of the Salamander’s principles of the “Hammer and Anvil” where the Praetorians serve as the hammer, and the guard as the anvil that breaks the enemy.
Silver Lance Marines will spend time in each company, while those more technically inclined will serve as ranged fire support from whirlwinds, and predator tanks.
The First company traditionally will perform this maneuver with Land Raiders, and terminator armor. Alternatively, the Praetorians can be used to box in the enemy for a devastating artillery strike followed by drop pod assault covered by deathwind missile launchers
The Silver Lances excel in operations with the Imperial Guard, as they can provide a strong “jumping off” point for lightning raids and assaults, as well as decimating firepower on their out-maneuvered and boxed in foes.
History:
The Silver Lances were formed by good graces of the Salamaders, at the behest of the Lords of Terra. The worlds of man near the Ghoul Stars, one by one, had been falling into darkness and shadow, and it was clear additional forces would be required.
The required equipment was produced at cost for the fledgling chapter, resulting in a relative lack of relics, however they were bequeathed a single Salamander's relic to remind them of their roots. The First Chapter Master, Selvarus Gracus, was faced with a widely spanning task. With limited resources, he would be forced to carve a path through the enemies of man and establish themselves as a fully-fledged force.
The Hive World of Belicas II was in revolt, the Apostate Cardinal Silas Y'lnod raising a large force of militia across the sector to overthrow the imperial presence there. To what end, no one could guess. Upon arrival on wings of fire via drop pod, breaking an assault on the beleaguered PDF forces, they decided to launch a strike against the planetary missile batteries of the world.
Heavily Entrenched, the Rebels would not be easily deterred, the marines deployed dozens of squads of bikers, neutralizing outriding positions, and setting up the final strike. Basilisk and whirlwind fire rained down on bunkers, and displaced rebels ran into the open, as a dozen shining land raider crusaders plowed into their lines, disgorging the entire first company into the thick of battle. Meanwhile, rhino assaults followed farther down the line severed all semblance of order. Librarians leading their brother's assaults using their divination of the future to help direct their squad's actions, and lending a preternatural efficiency to their movements, flanking, and avoidance of enemy fire. Steadily, and surely they cleansed the entirety of the facility, bikers running down any and all who would attempt to flee retribution.
Upon storming the control room, the chapter's techmarines went to work, reprogramming the missile batteries to target Hive Delarius, the heart of the rebellion rather than the Silver Lance fleet in orbit.The local PDF commander begged for mercy for whatever men and women remained loyal to the Emperor, however the Chapter Master gruffly returned only "The Emperor will know his own, none of this treason must remain."
A dozen missiles later, the Hive was little but smoking wreckage, and the rebellion under control with their leader dead.
For their victory, the Lances were bequeathed a world upon which to base themselves, and continue serving the Emperor, which they have dutifully done for the last 500 years.
Thoughts?