You'll be able to explore the Military Museum and Carriage Museum during your tour, but do take time to visit the vantage points along the western wall for wonderful views down onto vast areas of the Cityel, left unused and now decaying, and panoramic views acroseCairo.
The Cityel was unused for so much time that now is decaying.
The Military Museum and the Carriage Museum are definitely closed due to buildings fragility.