That's the fun part, so far he hasn't had to - aside from taking down a couple of helicopters early on, no-one in the Russian Army seems to care to fight with him. Putin is finding out there is a down side to beating your nation into passiivity. He produced a nation where no-one cared to oppose him, in the same nation no-one will care to save him.
Putin is apparently now waiting for Kadyrov to save his butt.
Yup. Creating free lance armies is pretty much State Suicide 101. Or, as Gandalf would say:
"A Treacherous Weapon is ever a danger to the hand."