>>513689660 (OP)
Trying to engage in urban warfare while needing to cross a river seems like a bad combination. With frontal assault out of the way and how the russian army tends to take on cities, they will need to concurrent landings, establish beachheads and then surround the city. This is hard to accomplish with swarms of ukrainian drones flying overhead, so this can only be done if either this is done in a massive effort or with the ukrainians getting significantly distracted elsewhere or with the ukrainians being so thinned out that there is almost no one left to defend the city anyway. Each of these requirements are not likely to be me in the near future, though the third one seems to become a possibility, seeing how the russians could punch deep holes into the ukrainian lines.