Tokarev

Tokarev (Russian: Токарев ) is a character who first appears in Metro Exodus. He is the Spartan Order's weapons expert who joins Artyom's crew aboard the Aurora armoured train.
His first name - Nikolai (Russian: Николай) is mentioned in the Russian dub of the game: during the preparation before the Novosibirsk mission, Miller will thank Tokarev with the phrase: "Спасибо, Коля", ("Thank you, Kolya"). "Kolya" is a common short version of the name "Nikolai".