I did it by eye. I made it from the outer ring of a bearing (which is why my blade is 5 mm thick). I cut it in half, heated up one half, and forged it into a straight flat bar. Then I cut out the shape using an angle grinder (the teeth on the spine of the blade and fitted the shape for the handle) and sharpened the blade on a bench grinder. I made the holes in the blade using a drill press.
The games do loosely follow a series of Russian novels, so that explains why Exodus is mostly not taking part in the Moscow metro network (the original story progresses that way afaik, although I haven’t read the books).
The plot of Metro Exodus is based on the book “Metro 2033: Beyond the Horizon” (this is a book from the expanded universe). There, the main character, a stalker nicknamed “Taran,” along with his crew, set off from Saint Petersburg to Vladivostok on an MZKT-79221 missile carrier (which had its missile replaced with a fuel tank). The characters also crossed the Volga, visited Yamantau, traveled along the shores of the Caspian Sea and Lake Baikal, and finished their journey in Vladivostok