 It had an increased range, greater throw weight and guidance system with better azimuthal coverage, providing military planners with better accuracy and a wider range of targets.Some missiles also carried penetration aids, allowing the higher probability of kill against Moscow's anti-ballistic missile system.The payload consisted of a single Mk-11C reentry vehicle containing a W56 nuclear warhead with a yield of 1.2 megatons of TNT (5 PJ).