While a 4 man team needs to work together and change up focuses depending on the situation if we want to be efficient, I think it could be useful if we could self-claim specific roles to indicate what we are going to prioritize.
The pilot will of course rarely going to leave their pilot seat and will focus on driving the ship to safety and battle and as captain maybe could decide on how artifacts should be utilized. He can also hop on the radar at the beginning of a map and do some scanning.
The gunner also has a dedicated seat and in dogfights he will probably stay there exclusively.
The quartermaster ? Should focus on loot organization, crafting/refilling ammo/hull HP/shield.
The guardian angel should jump on any hazards like fire, radiation, system malfunctions.
The names are just placeholders and for sure there will be plenty of overlaps in an actual match, but it can help giving an idea in public groups what ppl want to do/planning to do.