Time for my last significant update to this thread. I've concluded another round of teaching and during that time I completed a third terrain model. I never got to the fourth. I'm a senior instructor now and they are reassigning my to other duties as new instructors come in. After all the hours of work, I'm handing off the models to a buddy (who is buying them for a nice bottle of whiskey each). Part of me wants to keep them, but I don't play tabletop games personally so they'd just be wasting away in my attic and getting torn up when I move. Besides, they're training aids for our officers, and it gives me some satisfaction knowing they'll still get use. Hopefully they'll catch on.
And, for what its worth, quite a few students this last class bought quite a bit of microarmor from GHQ after seeing it used in my classroom. I must have given away about a dozen catalogs, and I know of at least two students for sure who bought probably about between $200-400 (U.S.) worth to use for training within their classrooms and after they move on.
Links below the pictures below are to full size images.
So, the last group got good use of the first of my terrain models:
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HMMWVs in support by fire with the company's mortars and attached ADA:
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Through the breach; the infantry company assaults.
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Looking south to north at the third and final terrain model. This is a chunk of actual terrain in Iraq called the Thar Thar wadi near the city of Baji. Students have to breach a mine/roadblock reinforcing obstacle and then cross 1.5 KM of raised road over the wadi which includes to bridges that they might have to span. Each tile is 20" and the model represents 3km by 5km of actual terrain. This one took me much less time to make as it is much flatter and there are no trees!
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OPFOR defends with a Mech infantry company reinforced with a T-72.
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Defensive fire is oriented on the crossing site.

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Infantry dismounting on the far side.
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Tank platoon secures the point of penetration. My roller tank is "good enough for government work." I'd love to see GHQ expand their selection of engineer equipment.
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A few other details. This is a rail yard south of the battle area. While I had high aspirations of using wire to replicate the train tracks, I ended up limiting myself to permanent marker to meet my timeline. Buildings are cork.
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A general view after the students finished the exercise on the board and went to write their hasty order.
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Some details of the engineers. I secured the wolverine bridge with sticky tack to allow students to emplace the bridge:
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I never got to the Stryker urban attack as I unexpected found myself on paternity leave, so the saga ends here. If I happen across any pictures from my successors using 'em, I'll see if I can share.