Yeah roads are begging for scenario specific rules or house rules, just like rivers! When you read the scenarios the rivers all seem to have "make it up!" kind of rules ha ha.
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Viz. my lovely terrain templates:
I bought 1 meter square of 3mm thick MDF from "Homebase" which is just a British hardware store chain.
Then me and my Dad chopped 'em up with power tools but the thing is when you use a saw you're trying to do sweeping curves and then using a plane to smooth out the transitions between sweeps of the saw-blade end up making slightly odd unnatural shapes.
For urban terrain squares / rectangles with sharp edges are fine but for woods / rocks / ruins etc. I was trying to make it so that you couldn't line up a missile unit along the edge unless you put them in irregular formation, thus inflicting a (-2) command penalty if you tried moving them out of it (-1 for irregular plus -1 for dense terrain).
I'm thinking that for my next round I'll be buying pre-cut pieces of MDF like this:
http://www.ebay.co.uk/itm/201165413570Which will save on time. Then I use Vallejo texture paste, there's several different kinds. The "Grey Pumice" one is the best as it has the thickest texture, but using the Black Lava or Dark Earth ones save on undercoating or the first base coat colour, even. Then you can drop slate or ballast onto it as it dries to give it a different texture, wash and drybrush it
After that I seal with a bit of dilute Vallejo matt varnish and glue a bit of static grass on.