I decided that in order to get back into the groove of painting, I'd take some Space Marines and paint them up the colours of some of the Crimson Lance from the game.
(Photo, in order from left to right - Crimson Lance Infantry, Engineer, Royal Guard, Defender)
All models started with a black primer base coat.
The below photos appear to have blending and shading not mentioned in the steps. At each step I use the colours listed but mix with water so I'm just lightly layering the paint on. After multiple strokes of each colour it gets stronger and stronger, making it appear to have blended from it's black base coat.
Secondary Armour - Mechrite Red
Boots, Face, Misc Details - Charcoal Grey (non-Citadel, but can be mixed with Fortress Grey and Black)
Gun - Tau Sept Ochre
Secondary Armour - Highlights with a mix of Red Gore + Elf Flesh
Boots, Face, Misc Details - Mix of Charcoal with Fortress Grey
I don't normally do a full black wash, usually choosing complimentary colours, but Borderlands Crimson Lancers have a dark look to them.
Secondary - Mechrite Red Highlight
Tertiary - Charcoal + Fortress Grey Highlight.
Secondary Armour - Mechrite + Elf Flesh highlight
Gun - Bubonic Brown highlight.
The base was coated in a mix of white glue and water (above 2 or 3 glue to 1 part water) then dipped in a bag of sand.
Nothing fancy, I know, but an insight into how I blend by always having a wet brush while painting.