Strident-class heavy frigate (EXverse)

A next-generation frigate, the Strident-class heavy frigate - hull classification symbol: FFG - is a heavily armed yet lightweight warship in service with the UNSC Navy. Designed during the later years of the Great War against the Covenant, it was a considerably leap in coming close to the Covenant technology; displaying some next-generation technologies such as energy shielding, advanced sensors and powerful armament, it became the most powerful frigate ever fielded by the Navy and the only one capable to fight Covenant opponent.
Despite all these strong points compared to previous, old frigates, it suffered resources shortages, such that many ships, for example, came out from shipyards without shields; this happened because Strident-class was chosen as a testbed for streamlined manufacturing techniques intended to accelerate production, but also to be produced from mobile dockyards in case fixed structures would have been lost or the lack of resources.
After the war, the class continued its service among Navy's ranks, becoming the most built frigate in the post-war years despite it wasn't intended as a replacement of previous frigates; around 2556, a refit included vessels already built, and always in that year energy shields were adopted on full scale, becoming standard aboard all Stridents and many other vessels.