Need help with military units for my novel . [ OT ]

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 When you say military units for heaven and hell, you would should focus on the historical aspect of things. 
 
 If you mean Heaven and Hell in terms of the Abrahamic religions, then the best outfit to model these military units would be Greco-Roman army compositions- Things like legions, centurions, etc. 
 
 If you mean Heaven and Hell in terms of as a concept in all religious beliefs, then that's where things are a little harder. Thematically, each `` heaven'' would be respective of that nation/culture that formed the roots of the religion. A Japanese or Asian heavenly guard would look a lot differently from an Indian, Egyptian, or European host. Even within each area, there are differences. 
 
 Here's a good example: http: //www.badassoftheweek.com/hussars5.bmp 
 
 This is a Polish winged hussar. Which had these guys: 
 
 http: //upload.wikimedia.org/wikipedia/commons/2/29/Bataille_Waterloo_1815_reconstitution_2011_cuirassier.jpg 
 
 exist at the same exact period of time. 
 
 
 Though times may have changed, formations, names, and make up definitely would not. 
 
 A strong example of this is the word Cavalry. For all the word means and its history, it involves horses. Thankfully we no longer rely on horses, but still keep the name. There is no reason why anyone could n't simply redesignate units as `` Armored'' or `` Light Armored'' except for history reasons. 
 
 All military units are based around their history and formation. As such, since Heaven and Hell are based on old-age ideas and have, for all intents and purposes, never been conquered by any entity or experienced culture clashes, their formations and names would remain the same. 
 
 On a side note, if you're trying to write something about Heaven and decide to give them rifles and machine guns, there is a role for even that. Given that Judaism experienced countless disporas and Christianity taking the spotlight during Roman times, we could designate Roman titles to each soldier/group. 
 
 Your rifles would be your bread and butter troops: Legionary. 
 Snipers: Velites. 
 Sapper: Princeps or Hastati 
 Medic: Medicus 
 Light Armored: Sagittarii 
 Armored: Ala quingenaria 
 Heavy Armored: Cohors equitata 
 
 The list goes on and on. I do want to note that while all modern day nations have things like 1st Rifles or 1st Division, the concept of 1-9 is a Indo-Arabic invention meaning you would have to use XI Legio. 
 
 On a second note, if you're looking for modern/post-modern military units for Egyptian/American/Russian, it's actually pretty simple. Because of history, space-based troops would still be called Marines until a reclassification was done ( which is extremely slow anyways ). All unit strengths and numbers are pretty similar around the world with each unit having specific tasks. 
 
 A Russian artillery division will be no different in form nor function than a US artillery division. In addition, an anti-armor division will still be anti-armor. If, for whatever reason, you have a bunch of marines floating around in space with a giant metal tank thing, the guys armed to rip that tank thing apart would still be called anti-armor. The guys firing a giant cannon across the world to hit a group of other floating marines would still be artillery.
