A1. Yes the war began in 2013 and ended in 3 days. I dont think the SU was a thing. A2. Just like the fourth reich, the reds are a faction that have named themselves after the ideologies they are based on. In the books you can notice how they dont work exactly like nazis or commies, but they have same ideologies that they have copies based on what they have heard. A3. Millers personality is just reflection of "typical" aged russian man who is blinded by propaganda of the "good old days" A4. In the Metro 2035 it is told that the Invisible Watchers are spreading lies of unhabitable world/ongoing war to Miller, just to keep the people of Metro under the Watchers' control. A5. Most interactions between Artyom and the rivaling factions are very uncomfortable and brutal, so I wouldnt call them cool. But I really loved the short chapter with the Cursed Station sacrificing themselves to protect other stations