The American forces are almost complete! At this point, we can almost play the Bolt Action scenario I've been working on. I'm pretty sure the allies players are going to enjoy this kind of fire power, especially because full tank platoons are included. I have some final work to do on the trucks, and have to paint another 50 riflemen, but overall, I am really really happy with the progress I've made.
The mud is a mixture of weathering powder and plaster, slathered on. I then used a flicking brush motion to add light and dark oils over the top of the mud patches. At first I thought I may have gone overboard, but when the force is viewed together it looks really good on the table.
One oddity of batch painting like this, is that my infantry are a much lessor quality than the vehicles. I may go back and rectify that at some point, but I suspect this will be the standard for a while. Conventions and club games are rough on miniatures, so it makes sense to stick with more durable paint jobs.