Wargames terrain scenery for 25mm 28mm historical and rpg. Urban Construct-Wargames Terrain resin scenery fortifications and building specialists. Wargaming scenery and resin models for wargaming.Wargames Terrain Specialists. Urban Construct produce resin cast modular wargmes terrain buildings, scenery and wargmes fortifications at 25mm and 28mm scale for historical wargames or role playing games (rpg). Some resin wargames terrain scenery models come complete with metal gun barrels, beams or troops.