Specialization of a squad can only be selected once, when creating a squad(or for existing squads, a one-time choice is provided).
It can be: destroyers, defenders, treasure hanters, racers, leviathan killers, mechanics, etc

Squad members got ongoing bonuses, for example:

▼ Destroyers get an attack bonus and an increase in hard cap for an attack. The upgraded parts of the attack, the maximum percentage of gunners and the squad bonus will enable players to kill entire clusters of guards like a hurricane.
▼ Defenders get a bonus to defense and an increase in hard cap for defense. The upgraded defense parts, the maximum percentage of engineers and the squad bonus will enable players to receive minimal damage.
▼ Treasure Hunters get an increased chance of finding parts, elemental cores and good luck when buying sypply drops or offerings.
▼ Racers get a bonus for increased crystal yield and increased hard cap for prospectors. The maximum percentage of prospectors and the squad bonus will make players the gods of racing.
▼ Leviathan Killers get an increased chance of spawning a leviathan.
▼ Mechanics get an increase in hard cap for mechanics, up to free repair, and an increase in the lifetime of parts.

Specialization of a squad may have a level system similar to the systems of drones or crew. It will affect to the strength of the squad bonus.