Planning and Construction
- Dry fit all terrain going on the tile, including ZM columns, walls, large SM pieces and scatter. 
 - Glue down any smaller terrain that will not be directly attached to walls and columns
 
Main Colors, Decals, and Initial Wash
- Prime  Mechanicus Standard Grey 
 - Basecoat   Mechanicus Standard Grey  This is needed because the Mechanicus spray is  significantly more blue than the air/base paint
 - Layer   Dawnstone  with airbrush, focusing on the center of each panel
 - Apply   Leadbelcher   to any vents that wont be covered by columns or other terrain features
 - Pick out some panels/details for hazard stripes or other non-standard colors
 
If desired, add hazard stripes / other colors to select panels / details.  I picked out random mettalic bits in   Leadbelcher  or   Screaming Bell .  Several service panels have been picked out in   Mephiston Red  and   Averland Sunset  in preparation for waterslide transfers.
- Gloss varnish the whole tile
 - Add various decals
 - Wash the tile with Winsor & Newton Mars Black oil paint
 - Seal the tile with satin varnish
 
Weathering, Streaking, Rust, Blood Splatter, Etc.
- Add Vallejo texture paint where additional grime is desired and along the base of details such as pipes, and other terrain
 - Using sponge, create chipping   Rakarth Flesh  and then   Rhinox Hide  
 - Stipple or drybrush   Leadbelcher  on edges of some panels for further wear and tear
 
Finalize
- Drybrush with a bone/grey tone
 
Walls
- Prime  Mechanicus Standard Grey  
 - Basecoat   Mechanicus Standard Grey   This is needed because the Mechanicus spray is a significantly different color from the air/base paint
 - dry brush   Dawnstone  
 - Basecoat inner wall portions   Zandri Dust  
 - Spray   Karak Stone  into the center of each wall panel (optional) - difference between Zandri and Karak is fairly small. The next step produces a much more noticeable difference in shading 
 - Spray   Screaming Skull  into the center of each wall panel
 - Clean up any overspray as needed
 - Pipes, lighting fixtures, and other elements were picked out in   Leadbelcher  and   Brass Scorpion  
 - Once all details were finished, I sprayed a gloss varnish
 - If desired, apply transfers to the walls at this step.  Do not add posters yet
 - Apply an oil wash to the walls
 
Pipes
- Prime with   Chaos Black  
 - Apply   Leadbelcher  
 - Paint smaller pipes in a copper color.  For this batch I used   Fulgurite Copper  
 - Tanks were painted   Mephiston Red  
 - Gauges were painted in   Warpstone Glow ,   Averland Sunset , and   Mephiston Red  
 - Plasma coils were based in   Wolf Grey  
 - Some additional hoses were picked out in   Black  
 - Gloss varnish was then applied in preparation for oil washes
 
Terminals
- Based   Leadbelcher  
 - Paint the monitor covers   Black  
 - Buttons were painted   Mephiston Red  and   Warpstone Glow  
 - The display itself was painted a 50:50 mix of   Caliban Green  and   Warpstone Glow  
 - Some displays can also be based in   Khorne Red  instead, to look like error screens
 - Gauges, if any, are   Warpstone Glow  /   Averland Sunset   /   Mephiston Red  
 - Pipes were picked out in   Fulgurite Copper  
 - Cables were given   Mephiston Red   and   Averland Sunset  
 - Spray gloss varnish
 - Apply decals for text on displays.  These were obtained from TheMightyBrush
 
Stairs
- Prime with   Chaos Black  
 - Apply   Leadbelcher  
 - If landing is attached, base it   Mechanicus Standard Grey   instead
 
Railings