The fascists-Russian vehicles has a Z painted on them and many do speculate what it really does mean, there is a quite simple explanation and it has to do with how ill educated fascist-Russian soldiers are, they can’t do their own decisions at all, they always relay on their offices to know what to do, when to sleep and when to eat and so on, the Z is for Zombie, a brainless creature.
When fascists-Russian soldiers takes their own decisions, they are quite stupid as taking an elevator in a building that is controlled by Ukrainians instead of the stare case up to the roof, so they got stuck in the elevator after the Ukrainian security company stopped the elevator and called the authority to come and pick them up. Now they have to wait for their mothers to come and pick them up (all fascists-Russian POW are allowed to leave Ukraine if their mothers pick them up and they promise to not pick up arms against Ukraine).