I don't have a name, I suck at coming up with them... But for it but for the rest...

Role: Tank
Weapon: Gunshield
Gameplay: Ranged Tank, for most part it wouldn't matter but for Trials and Raid fights where the boss doesn't actually move it would be much more open for positioning.
Mostly shooting the gun from the gunshield for attacks, with Magitek Missiles from Rhitathyn for AoE, and a lot of the shield related attacks can be taken from him and Varis from Memoria Misera.
Could steal MCH's old Reload mechanic for powered up shots.


Also for Limited Job, sort of bringing back the G-Warrior from Werlyt, somewhat miniaturized into a suit of Power Armor rather than a full on mecha.

Role: Everything
Weapon: The laser sword that the G-Warrior had, it can stay at Level 1 much like how BLU's sticks do.
Gear: The suit itself would be the armor, either in 5 pieces or just 1 piece that counts as a full set of armor. It would get upgraded through quests every few levels.
Gameplay: Have the base skillset you had in the one fight where you used the G-Warrior, with the addition of some attacks from the 4 weapons you fought against and some healing spells and turn the Barrier into a tank mode. Maybe even a mini-Ultima as an LB if used in a group.