Russian troops are using armored personnel carriers in their invasion of Ukraine. (Gavriil GrigorovTASS via Getty Images) A social media star based in Russia has gone viral with a video demonstrating how to drive an armored vehicle, ostensibly targeting people in Ukraine who find military hardware that's been left behind."If you come across a free or abandoned armored personnel carrier, keep a life hack on how to start it, save it so as not to lose it," Nastya Tuman captioned the video, which she posted to her TikTok and Instagram channels.Tuman is a mechanic with millions of followers who posts videos working on cars and racy photos of herself.