hi guys i was just wondering if anyone could tell me what paints to use to achieve the color on these models trench coats http://www.warfist.com/warhammer/Imperial%20Guard/pages/Krieg%20Squad.htm

I'm not entirely sure, as I have never used this color, but from the preview swatches, it looks to be Graveyard Earth.

Yeah. It looks like it could be Graveyard Earth (or maybe Scorched Brown) with Fortress Grey highlights.

Mess around a little with some scraps. See what you get.

You may have to mix some colors though. I would advise using a mixing pot, so you don't have to mix it every time as that can be inconsistent. Just in case it isn't a direct-from-pot color.