At home, the Moccamaster, with 1x4 filters, filled to brim, about 1,5 litres water, 71 grams dark roast filter ground. Very repeatable.
In the outdoors, the Trangia pot, cold water, coarse grind beans (as dark roast as possible) and bring to a boil, lift off, boil again, let stand for a minute to make the grounds sink off, and serve. Don't clean the pot for the next batch, just add more beans...
Yes, we and our easterly brothers and sisters in Finland are the ones who drink the most coffee per capita in the world.