 Another possibility is to provide the Marlin canon with Mistral missile.If necessary, embarked marines with portable Stinger missiles can provide limited protection.Expansion with an Mk 29 GMLS (Mod 4 & 5) or an Mk 57 Vertical launching system, which is capable of firing the RIM-162 Evolved Sea Sparrow Missile (ESSM), would be a significant improvement in air defense, whereby the OPVs would then be able to be deployed in high risk crisis areas.