thought i might as well add my 2 pennies worth
name: the Spartans
Symbol: greek style sheild decorated with winged blood drop in centre
Colours:black and red with some white and purple for contrast
Founding chapter: blood angels
Founding: second (secret)
a small planet on the eastern rim.
favorite taunt: n/a
background: After sanguinius' death at the hands of Horus, the blood angels split into several smaller chapters.
amongst these were the well known sucessors like the fleshtearers and the Angels Sanguine, but there was also another, the Spartans were origionaly members of the Blood Angels 14th company when they were still at legion strength but they became a totaly different chapter folowing the Herasy. Situated well away from the main galaxy, they took no part in the fighing against chaos. this was because, unbeknownst to the Imperium, a tyranind Hive Fleet was invading the galaxy for the first time.
unable to contact the Imperium through the warp, the Spartans, with aid from nearby Imperial Guard regiments and planetary defence forces, iniciated a long campain against their xenos foes. due to the tactical briliance of their commander - Captain Julius Sparticus, the single company of marines managed to destroy the Tyranid fleet, although it cost them the better part of their fighting strength to do so.
however, it seemed all in vain when a massive warp storm appeared on the edge of their system and two three of the five planets were sucked way, taking most of the Guard with them.
when the Imperium finaly redescovered the planets, they found only near barren deathworlds and a few hundered space marines in orbital bases arround the planets.
in reward for their heroic actions, the company was given its own Fortress Monestry by the blood angels and officially reckognised as their successor. however, their name was struck from the reckords later by the inquisiion, and now all that is known about them is only known by the High Lords of Terra, the Inquisitors of the Ordo Xenos and the Spartans themselves...