HaT now makes a British Colonial Gatling Gun. It is 1/72nd scale, soft plastic.
The man with the little tripod device is a heliograph. They used it to reflect the sun and send Morse code type messages over long distances, only in the daytime, and only in good weather. The soldier with the telescope can be used to read those messages, or to observe for enemies at a distance.
While the model does not take glue well, it fits together just fine. The man who looks like he is riding a horse, fits over the trail of the gun as the firer. Many armies of the late 1800s wore essentially this uniform and used Gatling guns. You could probably find forces not unlike this right up to the first year or so of the Second World War in some parts of the world.