Russia's small, stealthy "missiles-with-a-hull" corvette — an 860-ton Project 22800 ship that carries eight Kalibr or Oniks cruise missiles, the more seaworthy sibling of the Buyan-M. Cheap, heavily armed, and a recurring Ukrainian target.
Russia's small, shallow-draft Kalibr-armed missile corvette — a ~950-tonne hull that can transit inland rivers between fleets and lob land-attack cruise missiles 1,500 km. It fired the first combat Kalibr at Syria in 2015 and has been a principal platform for strikes on Ukraine.
Russia's principal modern multirole corvette family — compact littoral combatants evolved from a simple anti-surface/ASW design into a Kalibr-carrying strike platform, forming the coastal backbone of the Baltic, Northern, and Pacific Fleets.
Russia's latest nuclear ballistic-missile submarine, the cornerstone of its sea-based nuclear deterrent, carrying 16 Bulava SLBMs and featuring a pump-jet propulsor for enhanced stealth.
Russia's most modern surface combatant — a multirole frigate built around long-range precision strike with Kalibr and Zircon hypersonic missiles, and the anchor of its future surface fleet.