Alexsandr Senaviev, also known by his codename Tachanka, is a fictional character in the video game series Tom Clancy's Rainbow Six Siege. Renowned for his heavy armor and defensive capabilities, Tachanka is a member of the Russian Spetsnaz unit. His signature equipment is a mounted RP-46 Degtyaryov machine gun, which he sets up to provide suppressive fire and area denial. Despite his slow mobility, Tachanka is valued for his ability to fortify positions and control key areas, making him a strategic asset in defensive scenarios.