I apologize for not having a slideshow as promised, I had taken step-by-step photos but they turned out to be too blurry to make anything out. However, I still have the instructions:

First off, undercoat. I used Chaos Black spray.

The fatigues: (Pants, sleeves, etc)
1. Basecoat with straight Khemri Brown foundation paint. It should cover completely, if not apply another coat to completely cover up the undercoat.
2. Add Kommando Khaki and and Skull White to Khemri Brown to get a color just lighter than Kommando Khaki. The point of the Khemri Brown is to make the color a little thicker, since Kommando Khaki is normally quite a thin paint.Highlight the clothing, leaving the recesses with the Khemri Brown showing through.
3 (optional step) if you want them to look especially good, you can add more Skull White for highlights, focusing on areas that would be exposed to light.

Armor:
Step 1: Basecoat of Catachan green. A couple of coats may be necessary.
Step 2: Add Camo Green and Skull White to Catachan Green to get a rather pale green and highlight just the edges of the armor.

Guns:
Step 1: Basecoat of Catachan Green.
Step 2: Make a 70/30 mix of Codex Grey to Catachan Green and highlight the edges of the gun.
Step 3: (Metal parts of the gun) basecoat Boltgun Metal, wash Badab Black and re-highlight with Boltgun Metal.

Skin:
Step 1: Basecoat of Tallarn Flesh
Step 2: Wash with watered-down Dark Flesh.
Step 3: Re-highlight with Tallarn Flesh.
Step 4: Add skull white for highlights, on areas such as the nose and cheeks especially.
Step 5: (Optional) I added stubble to some of my Cadians, this was done with 2-3 VERY thin washes of Chaos Black.

Pouches, etc.
Basecoat of Scorched Brown
Add Skull White for highlights.