We don't have synonyms for warheads yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are warhead, hardheads and jarheads.
(n) :
The part of a missile, projectile, torpedo, rocket, or other munition which contains either the nuclear or thermonuclear system, high explosive system, chemical or biological agents, or inert materials intended to inflict damage.
(n) :
The part of a missile, projectile, torpedo, rocket, or other munition which contains either the nuclear or thermonuclear system, high explosive system, chemical or biological agents, or inert materials intended to inflict damage.