Please note the tracks have the supports at the bottom; the exposed idler wheel are at the top. I created recesses to aid in assembly but these are purposely loose. I recommend the use ot epoxy for assembling these. As noted in the photo, I elevated the blade when assembling with some thin wood bits; I used CA glue to affix this; it will nestle into the support arms well.
I am not aware of this unit being represented in any Bolt Action theatre books but it deserves to be; you can still use it as a terrain piece on a beach landing in Western Europe or the Pacific, or use house rules, allowing it to clear obstacles, wire etc.