In Star Fox Guard, completing certain objectives can earn you new symbols to display on your player card. Note that the whole board won't be visible until you get to the fifth planet in the story mode, and titles that you've preemptively completed the requirements for won't be awarded until the requirements are visible in-game.

Symbol	How to unlock
Annihilator	Get 20 Perfect Guard bonuses.
Battle Hardened	Defeat a star strategist's squad every day for a week.
Champion	Defeat a squad found via ID search made by a rival with a battle rating 5,000+ yours.
Combo Master	Get at least five combo bonuses during one mission (combo bonus is awarded for five consecutive hits)
Conqueror	Launch a successful attack on every map.
Cunning Combatant	Surprise 300 robots.
Dedicated Defender	Player for a total of 15+ hours.
Demolitions Expert	Defeat 10 bots by causing B.A.M. Unit explosions.
Destroyer	Defeat Infernal Joker in four minutes or less.
Elite Operative	Complete 50% of bonus missions.
Fortune Favored	Defeat a star strategist's squad five times.
Future President	Clear all extra missions.
Giant Slayer	Defeat Hi-Ho King in two minutes or less.
Go-Getter	Achieve Rank 25.
Grand Master	Clear all missions and launch 20 successful attacks on every map.
Gunslinger	Shoot 10 robots thrown by Big-G out of the air.
Hard Worker	Update a squad at least once a week for four consecutive weeks.
Heartbreaker	Defeat a friend's or family member's squad.
Indomitable Hero	Defeat four robots while under a M.A.G. Unit's effect.
Jack-of-All-Trades	Get every precious-metal bonus that can be earned while defending.
Keen Observer	Clear main mission 40, Magnetic Mayhem!, without the alarm sounding.
Lylat Protector	Clear all main missions.
Master Thief	Launch at least five successful attacks with Nabbot in squad.
Nemesis	Defeat five of a rival's squad.
New Recruit	Start your new job.
Party Crasher	Defeat 100 robots during the credits sequence.
Pioneer	Defeat an untested squad.
Popular Strategist	Achieve a max-level Heat Index.
Prodigy	Clear all missions and launch 20 successful attacks on one map.
Promising Novice	Defeat a rival's squad.
Researcher	Watch a My Squad replay in which another player battles one of your squads.
Seasoned Veteran	Defeat a rival's squad on every map.
Sniper	Get a Perfect Guard bonus on all sharp-shooter missions.
Squad Builder	Complete five My Squad battles.
Squad Captain	Launch five successful attacks with a normal squad.
Squad Commander	Launch five successful attacks with a big squad.
Squad Leader	Launch five successful attacks with a small squad.
Start-Up Strategist	Launch a successful My Squad attack.
Steadfast Defender	Defeat a rank 30+ rival's squad.
Superior Shooter	Clear main mission 20, Make Way for Big-G!, without losing any cams.
Survivor	Defeat an invading force with fewer than five AegisCams left.
Swift Shot	Defeat Queen Clucktron in two minutes or less.
Thrill Seeker	Defeat a squad found via ID search.
Top of the Class	Reach Rank 50.
Tough Cookie	Defeat Squads in five consecutive World Rivals battles.
Trailblaizer	Clear an extra mission.
Tycoon	Earn at least 1,000 precious metals with a single squad, and then collect them in one go.
Versatile Guardian	Get all special-cam precious-medal bonuses.
Warrior	Defeat a rank 50 rival's squad.