Solasta: Crown of the Magister

From the main menu, click 'Characters', then 'New character'. Choose Fighter for the class, and continue through the process.
Once you finalize the identity, the achievement will pop shortly after.

Fighters are worse than paladins or rangers until at least 11th level, and then just usually worse. For this achievement, you must only build one, not play one. Sword(or other one-handed) and shield is the best style. You can go Dex-based and use a rapier or light weapon or Str-based to use any weapon. Dex will make you better at ranged combat, and Str only makes choosing weapons easier.
Race: Wood elf for Dex-based, Half-orc for Str-based, or Dwarf for Str-based with lots of HP.
Elf Standard array: STR 8, DEX 17, CON 14, INT 8, Wis 16, Cha 8
My Elf array: STR 12, DEX 20, CON 16, INT 8, Wis 15, Cha 10
Max Elf array: STR 18, DEX 20, CON 18, INT 18, Wis 19, Cha 18
Gear: Leather, rapier and shield, Light crossbow, Dungeoneer’s pack
Background: Lowlife,
Skills: Athletics, Insight
1st level: fighting style: Choose Defense
3rd level: Archetype: Commander is best, Mountaineer is ok.
4th level: If My array or Max, Feat: cloak and dagger. If Standard: Ability Score increase: +1 Dex, +1 Con
8th level: If My array or Max, Feat: Badlands marauder. If Standard: Ability Score increase: +2 Dex,
12th level: If My array or Max, Feat: Creed of Maraike. If Standard: Feat: Enduring Body
16th level: If My array or Max, Feat: Enduring body. If Standard: Feat: Cloak and Dagger

Half-orc Standard array: STR 17, DEX 14, CON 14, INT 8, Wis 12, Cha 8
My half-orc array: STR 20, DEX 14, CON 17, INT 8, Wis 12, Cha 10
Max Half-orc array: STR 20, DEX 18, CON 19, INT 18, Wis 18, Cha 18
Gear: Chain mail, Longsword and shield, Handaxe, Dungeoneer’s pack
Background: Ascetic
Skills: Athletics, Perception.
1st level: fighting style: Choose Defense
3rd level: Archetype: Commander is best, Mountaineer is ok.
4th level: If My array or Max, Feat: Badlands marauder. If Standard: Ability Score increase: +1 Str, +1 Con
8th level: If My array or Max, Feat: Forest Runner. If Standard: Feat: Badlands Marauder
12th level: If Max, feat: Creed of Misaye, If My array, Feat: Enduring Body, If Standard: Ability Score increase: +2 Str
16th level: If Max or my array, feat: Creed of Maraike, If Standard: Ability Score increase: +2 Con