PAINT LIST:
Primers 
Chaos Black
Wraithbone
Paints:
Balthasar Gold (base)
Creed Camo (contrast)
Black Templar (contrast)
Leadbelcher (base)
Seraphim Sepia (shade)
Pallid Wych Flesh (layer)
Agrax Earth Shade (shade)
Wraithbone (shade)
Elysian Green (layer)
Leadbelcher (base)
Corvus Black (base)
Blood Angels Red (contrast)
Seraphim Sepia (shade)
Rhinox Hide (base)
For touchups, 1:1 Wraithbone with seraphim sepia works well, keep it more like a glaze in consistency
  - Zenithal Prime with   Chaos Black    and   Wraithbone  
 - All over wash with 1:1 mix of   Lahmian Medium  &   Seraphim Sepia  
 - Drybrush with   Wraithbone  
 - Base metal trim with   Runelord Brass  
 - Shade brass with   Agrax Earthshade  
 - Base shoulder pads with   Creed Camo  
 - Base weapon and undersuit with   Black Templar  
 - Base metallic details (bolter, backpack etc) with   Leadbelcher  
 - Layer highlight armor with   Pallid Wych Flesh  
 - Layer highlight shoulderpads with   Elysian Green   (leaving creed camo showing in recesses)
 - Layer highlight metallics with   Leadbelcher  
 - Layer highlight blacks with   Corvus Black  
 - Paint eye lenses with   Blood Angels Red  
 - Highlight rivets and details with   Seraphim Sepia  
 - Sponge weather armor with   Rhinox Hide