I said I'd dig out a few of the old wip pics from this build. Nothing like a fancy SBS but it should give you some idea of the basic steps .....
The start ...... rough mock up of the concept. At this stage it's all a bit "meh" and looks like an M113 with a few 40k bits stuck on it ... because it is just an M113 with 40k bits.
So I added a few extra bits. As you can see there's no fancy building here, it's pretty basic but just enough to break up the outline and creat a bit of interest for the eye. It also gets basic undercoat at this stage. The base red is Humbrol, I use enamels as a primer for coverage. After that everything is brush painted GW acrylics, whcih is the same for all my stuff, from aircraft to tanks, it's all brush painted GW's ....
The stage is sort of like the airbrushing of a pre-shade. It's just some thinned black slopped around the edges of panels etc.
Here the shading is drybrushed with the base red. As you can see almost all of the shade is gone, theres just enough of subtle hint to add with weathering.
The final stage (apart from any decals, fine detail and pigments on the tracks, is the weathering and lightening of the paint. Basically it's drybrushed with the base colour to which successively increasing amounts of a bleach colour is added (whites or yellows usually). I tend to go lighter towards the tops of the sides and top of the vehicle. Also I add a little streaking to simulate rain washing marks and chipping, which is done with a fine detail brush in grey.
And that's it and I use a similar system for pretty much everything .........
cheers
Brent