TEXT: In their unrelenting hunt for the Fallen, the Dark Angels,
  have had to adapt to many situations in order to
  successfully capture their prey. They cannot reveal their
  secrets to anyone in the Imperium and so must forgo their
  assistance. The Ares pattern Land Raider was developed
  because of this reason. Following years of rumors, the
  distant planet Murus, was found to be under the control of
  three Fallen Dark Angels calling themselves 'The Tribunal'.
  In order to reach their fortress citadel the Deathwing would
  be forced to traverse the city surrounding it. The Tribunal
  had anticipated this eventual confrontation and had
  fortified the city with weaponry made all the more
  powerful by their knowledge from ages past. The leaders of
  the Dark Angels determined that the armour of the
  chapters vindicators could not stand up to the fire power
  they faced and so commissioned the Chapters Techmarines
  with finding a solution that would allow the Deathwing to
  reach the fortress and bring these Fallen to their
  redemption. Day and night they worked, and finally after
  many weeks they had successfully developed a tank with
  the heavy armor of a Land Raider and the crushing power
  of the Vindicators Demolisher cannon.
  The Ares was also equipped with a pair of  Sponson-
  mounted twin-linked Heavy flamers and a hull-mounted
  twin-linked Assault cannon. Weapons that would prove
  invaluable during battle in the heart of a city. The Ares has
  no troop carrying capacity as it must have room for the
  large demolisher shells it will unleash. For this reason it has
  been mostly used in conjunction with the other troop
  carrying patterns of Land Raiders. Unfortunately the battle
  of Murus was a failure. The Tribunal was able to escape
  long before the battle began and the Deathwing lost their
  quarry. However the Ares was a success and of the six
  created only one did not make it through the city to the
  Fortress. Following the battle the Master Techmarine, in a
  move unpopular with the Dark Angel’s Inner Circle,
  submitted this newly created pattern to the Adeptus
  Mechanicus on Mars but it has never officially been
  accepted as a viable variant of the Land Raider. Thus It is
  one of the rarest Land Raiders. However in a very few cases
  other chapters Techmarines have acquired the plans
  detailed by the Dark Angels Techmarines and have used
  them to create the Ares for situations that might call for its
  use.
  LAND RAIDER ARES
  POINTS: 300
  Hull mounted twin-linked
  Assault cannon.
  Sponson-mounted
  Twin-linked
  Heavy flamer.
  UNIT: 1 Ares pattern Land Raider.
  TYPE: Tank.
  WEAPONS AND EQUIPMENT: 
  - Demolisher cannon.
  - Two sponson-mounted twin-linked Heavy Flamers.
  - One hull-mounted twin-linked Assault cannon.
  - Smoke Launchers.
  - Searchlight.
  - Dozer blade
  - Power of the Machine Spirit.
  WEAPONS            RANGE
  STR    AP   SPECIAL
  Demolisher
  24"       10       2    Ord. 1/Large Blast
  Heavy Flamer         Template      5       4    Assault 1
  Assault cannon
  24"        6       4    Heavy 4, Rending
  Size Comparison.
  OPTIONS:
  Take extra armour for +15 points.
  ARMOUR
  BS
  FRONT
  SIDE
  REAR
  4
  14
  14
  14
  “The city must fall.
  Our chapters purity depends on it!”
  – Litany spoken by Interrogator Chaplain Bish
  on the 42nd day of the siege of Murus.
  Smoke Launcher.
  Searchlight.
  Demolisher
  cannon.
  Extra Armour.
  Dozer blade.
  Blast Exhaust
  Fans
  www.games-workshop.com
  © Games Workshop Limited 2007. Games Workshop, Warhammer, Warhammer 40,000, Apocalypse are ©, TM and/or ® Games Workshop Limited 2007. All rights reserved.
  
SOURCE: textdata/thevault/Warhammer/40k/1st-8th Editions (Prior)/5th Edition (2008)/Apocalypse Datasheets/40k 5e - Space Marines - Land Raider Ares.pdf