Climber - Tailored for Spartans specializing in the obscure art of "vertical warfighting"
Culinarist - Custom-tuned for the renowned Spartan food taster detachment
Cutlery handling - Equipped with a ferocious specialist AI designed only for the high-performance needs of Spartans assigned to dish-washing duty
Casanova - For those Spartans for whom shore leave is not enough
Cannonball - Designed for use in conjunction with the Mk. VII Portable Spartan Launcher
Connor, O' - Standard issue for the Spartan Janitorial Corps, the armor's mopping routines will easily consume an unworthy mind
Catfish - Part of a wider template of piscine MJOLNIR variants, the CATFISH configuration leverages the latest ichthyic warfighting hardware and software routines
Cactus - The wide-ranging CACTUS template's hyper-schismatic external topology is intended to throw the enemy into disarray
Currency exchange - Engineered for the demanding duties of the Spartan Financial Corps
Curling - Undoubtedly the source of the Spartans' success in the UNSC's inter-service curling tournaments, the CURLING system leverages an innovative but savage AI neural network which leaves a permanent imprint in the synapses of its wielder
Customs - Favored by the ever-increasing number of Spartan customs officers