I am not a lawyer; I cannot provide legal advice, but this is my understanding:
A 3D model based on a real war weapon/vehicle (AK-47 rifle, F-14 aircraft, Panzer tank)?
This probably depends on the particular weapon. Something older and/or more generic like an AK-47 which is in the public domain can be Standard, but something currently in production and/or representing the IP of a company (e.g. Colt, Smith & Wesson, Browning, etc.) would need to be Editorial. When in doubt, if it’s older than 70 years, you can make it Standard
A 3D model based on antique war weapon/vehicle (catapult, pirate cannon)?
A 3D character based on real alive people (Tom Hanks, Donald Trump, Tom Cruise)?
Using a person’s image seems to be a bit of a gray area, but usually can be Standard as long as you are not presenting the person in a defamatory way. You might want to choose Editorial if you have any doubt.
A 3D character based on real dead people (Leonardo da Vinci, Jesus Christ, Nikola Tesla)?
A 3D model based on a famous art piece (Mona Lisa, David statue)?
If artwork is in the public domain (typically the artist has been dead for over 70 years), Standard. Otherwise, Editorial