For Russians this is an artform. It's not like they have college educated FSB agents to send everywhere. They have to call up some poor guy somewhere and tell him what needs to be done. Much is lost in that hurried communication. My favorite episode ever! The "Sims game" photo. https://www.vice.com/en/article/88gpmg/russia-sims-3
On the Patriot system. I won't be surprised if they're using home-grown systems now. Or they've modified. Ukraine had a serious defense industry before the war. Some seriously smart Ukrainians running around. The Russians aren't that stupid. Ukraine has a secret weapon or technique which they're keeping very close to their vest.