The uncomfortable truth is that civilians will be used as shields by insurgency as it always has.

We are starting to see some of this right now (and I'm not 100% certain) but for instance the alleged Azov battalion operating near DNR/LNR area is said to be not allowing citizens to leave the city. There are footages going around them turning (you can tell from the patches they wear) citizens away from checkpoints as they try to leave.

Like Hamas in Palestine who regularly launch rockets at Israel from top of apartment buildings, it's only a matter of time before insurgency turns to this tactic as they are determined to keep fighting.