To best understand the capabilities of a army is to understand their civilization (If the Army in question has a system for civilization).
This is to describe the level of civilization, this describes the level through accomplishments that they have, how far they have gone, the description of their species abilities to advance. Including the usage of energy on different scales.
This can be reference to the Kardashev Scale.
Civilization Tier System
Tier 12: Stone
When as species or group that is just emerging and it's means of civilization are rare or unlikely. They are just hunters and gatherers. Very minor tools and weapons, just lives in tents and small bands.
Tier 11: Ancient
The species breaks out of it's hunter gathering habits and settles down to build cities, perform agriculture, construct walls, and societies, and build stable governments and cultures to thrive and become mighty.
Tier 10: Dark
The Species begins to expand it's territory and conquers other neighboring lands and advances technology for warfare, education, agriculture, creating larger and stronger buildings, fortifications to withstand enemy invasions and to wage wars.
Tier 9: Exploration
The Species possesses the means to explore and discover the world. such as advanced ships, adventurous scholars, or creating colonies, expanding the far and wide blank spaces on the map to achieve each and last square mile.
Tier 8: Industrial
The Species becomes more eager to progress and change, building mighty machines, manufacturing chemicals, changing the land and modernizing their civilization, utilizing resources to their effective potential.
Tier 7: Atomic
The ability to harness the power of the atom opens a new frontier for the species and their civilization. The power to generate bountiful energies is within reach and use it to advance our knowledge of the quantum mechanics.
Tier 6: Digital
The Species seeks to retrieve, understand and store information, thus is the age of data and computers, where information is power and the key to global unity, hacking and securing secrets, history, or vital info that would effect a civilization's destiny.
Tier 5: Space
The Species cannot just be bound to their planet and must break the bonds of gravity and reach out into space, with highly advance jets, satellites to both observe the planet from space or observe the cosmos.
Tier 4: Planetary Colonies
The Species comes a long way of advance civilization, but now is the time to set foot on other worlds, with means of life changing and terraforming means and acquiring their natural resources.
Tier 3: Stellar
The Species has utilized the means to harness the energy of their parent star(s) to establish their control over their local solar/star system and supply it's power to all it's worlds to finally be free of planetary resources and possess the means to travel long distances and still survive across space.
Tier 2: Galactic Dominance
The Species broke the means of space and time to traverse the obstacles that separated them from the galaxy they reside in and utilize it's resources and energy as well.
- At it's peak, the civilization of this tier can harness the total energy of the galaxy itself by any and all means.
Tier 1: Universal
The Cosmos is no longer infinite as the Species possesses the means of universal dominion, understanding the energies that permeate the void allows them to go farther than they ever achieved as well as bending space and time.
Tier 0: Multiversal
There is nothing left to explore as the multiverse itself no longer a mystery to the species and traverse the many layers of realities and dimensions.
Aspects of Civilization
this section talks about the civilization's achievements through whatever means such as powers, abilities, technology, etc.
- Magic - The civilization is powered by a means of paranormal energies of magic, bending the laws of physics to do mystical accomplishments. ex. Alvarez Empire (Fairy Tail)
- Science - Science is more realistic and has been part of real world history for many achievements. ex Amestris (Fullmetal Alchemist)
- Psionic - Some Species have great mental abilities that they can even tether to their civilization at a means of evolving. ex. Protoss (Starcraft)
- Bio-Engineering - Somes species can modify their physiology to overcome their lack in machinery advancement. commonly called (Biotechnology). ex. Zerg (Starcraft)
- Divinity - Some advanced Species that utilizes spiritual or divine powers or is guided by an all powerful entity. Humanity (Destiny)