Update 8.2 progress

Progress for an 'Apocalypse' game mode map and made some progress on the imperial knight vehicle to be used by the astartes faction.

The 'Apocalypse' Game mode gameplay will be loosely based around the Game; Titanfall and aims to be a larger map with larger players and AI to include maps big enough for titans to be a playable unit on the field. Other such titans include the gargant (for orks), or the wraith knight (for eldar) Since v8.2 will have the astartes and ork factions, the apocalypse map will contain a gargant and the above seen imperial knight.