Time Lord Compendium Page 52

Next up will be the Interior command room configuration for the Prototype Battle TARDIS, Tubal Cain's version. While Tubal Cain's Battle TARDIS did not sport a Gravity tractor, it was formidable. Tubal Cain's Battle TARDIS prototype was coloured in Army Green, while the Production model ships, the MARK I, Battle TARDIS came in standard Battle Ship Gray.
The Special C.I.A. modified prototype Stealth Battle TARDIS was coloured in reflective black. It would look like the stars when in space, and could run undetected by quantum time distortion sensor technology. The C.I.A. modified prototype will be included in the Time War Supplement to the Time Lord Compendium, along with the MARK II, upgrade.

Note:
Pages 56, 57, Battle TARDIS will be getting a slight redo, to follow shortly. Once that is finished, I will be uploading the Tubal Cain Command Room floor plan, and various other specs on the Battle TARDIS.