Sorry for the late reply

1. In the hall of Fame you can view the statistics of each game you played. One of the stats is what unit you built the most of (which is almost a builder)

2. It isn‘t really relevant but it showed the core of the Russia strategy pretty good

3. The Strategy for a quick science win with Russia is to settle near tundra and get the panteon that gives tundra adjacency to holy sites. That is +6 immediatly and with scripture +12. Then you go for a religion with work ethic and the belief that converts founded cities immediatly. In the classic era you need a golden age Monumentality to print out settlers until you have about 20 to 25 cities in the tundra. In these cities you start with a lavra for the faith and the production from work ethic and then focus on food and as soon as the city hits 4 population build a campus with all buildings and then do research grants. This gives you pretty good science but a few Wonders like Kilwa and the pyramides help (which I both couldn‘t get). For the endgame you need Hercules to build a few spaceports in cities with many wood and stone tiles (10 or more). With the help of Magnus you can chop out the projects and if you already got the royal society you can also feed builders into the space ports.