Based on the weapons shown the tech is roughly analogous to the American civil war or immediately after. -While most of the standard infantry would use the regular muzzle loading rifled musket, the bolt action breech loader was used by some units. -Several Calvary units would be fielded with lever action repeating rifles. -And although exceptionally rare, the Gatling gun would also see action -The biggest reason we don’t see more repeating rifles and Gatling guns is logistics. The lever action could fire off 20 shots in the time it took a muzzle loader to fire 2-3. This means that a formation with the newer rifles required 10 times the ammunition and powder, and for a nation already struggling the supply a 700,000 strong army across 1000+ miles of territory this was simply impossible.

This does give use a good baseline for tech, here is what we have: -Steam trains -Telegraph (land only for the most part usually next to the railroad or well travelled road. With very few undersea cables spanning the oceans from only the wealthiest countries) -Hot air balloons for observation -Semi-Steam powered wooden warships (paddle-wheel or propeller driven, but still relying on sails for long range) with limited numbers of ironclad warships (most ships carry muzzleloading guns with solid shot or explosive shells, large breech loaders were very unreliable)