From the website:
The Deimos pattern is an early type of Vindicator used by the Space Marine Legions during the Great Crusade and the Horus Heresy, although many are still operational in the service of Space Marine Chapters in the 41st Millennium. A powerful assault tank, the Vindicator's principal armament is a heavy-calibre demolisher cannon capable of shattering fortifications and breaching the armour plates of tanks with equal ease. It is invaluable in urban warfare as it can blast and shunt its way through barricades and obstacles, enabling troops following behind free passage through streets that might have otherwise swiftly degenerated into kill zones.
The Legion Deimos Pattern Vindicator, designed by Phil Stutcinskas, is a complete resin and plastic kit,