Would guess they are trying to puncture whatever keeps the pontoons afloat. I know nothing about the bridge pontoons though, but seen plenty of helicopters with lots of holes in them

Also lots of other places (YouTube as an example) allow you to migrate your account indefinitely, over a decade after they were purchased.

Polish friend of mine says Radom and Kielce are a bit of a shit hole.

The bunker busting part is almost too effective, going straight through the thing you want to blow up and then exploding further away