>>510006079
-Does Russia NEED to use teargas to defeat Ukraine?
-Does the use of teargas confer significant strategic battlefield advantage?
-Does the use of teargas entail risk of reciprocation or escalaton opposing forces?
-Does the use of teargas risk international blowback/sanctions against Russia?
-Does the use of teargas risk possible warcrimes charges against Russia?

For the Russian generals, use of teargas in combat isn't worth all of the negative externalities, which is why I believe any use, if in fact confirmed to be by Russian forces, was an unauthorized use by a low level commander who either violated his orders or was not properly trained as to restrictions on teargas use in combat..