Royal Marines carried by Type 22 frigates

How large a Royal Marines detachment could a Type 22 frigate carry, and what equipment would it bring?

Up to about 40 Marines could be accommodated, though a dozen was more typical, with light-infantry weapons rather than heavy equipment.

Up to forty Royal Marines could be accommodated on a Type 22, roughly a reinforced platoon, although a dozen or so would be more usual. They would bring light-infantry weapons, including submachine guns. After the Type 22s left service, the discussion identifies Type 45 destroyers and River-class patrol ships as vessels able to carry that many Marines. Type 23 frigates are described as unable to match that capacity, and forty aboard a River would be a tight squeeze.