Retired silos, retired TELs, retired SSBNs all scheduled to be scrapped and new SSBNs stills working up. Russia has been replacing single warhead Topols with MIRVed Yars. So yes most of Russia's force is probably MIRVed.That's a rather large number of undeployed launchers for the Russians. I wonder what fills that category? SSBNs? Also the Russian force must be pretty heavily MIRV'd to still reach a similar level of warheads. The US has a pretty low level of this - 400 MMIIIs with single warheads and an average of just ~4 warheads per Trident.
Does anyone know if AGM-86s count as individual deployed strategic warheads or are they part of the 'one warhead per bomber' arrangement?
In New START one bomber equals one warhead, no matter now many missiles it carries.