If you're going by the definition of "Warrior of Light" as someone who was time-skipped forward at Carteneau and for whom others' memories of them are distorted or eliminated (per the MSQ through the 20s), there's a fair number of people who RP that. Of course, merely being at Carteneau certainly doesn't make you some kind of Big Damn Hero. 
If you mean "Warrior of Light" as "The Adventurer," then yeah, no one RPs that to my knowledge (at least not publicly).
My general rule of thumb is, "don't assert anything that not everyone could do/be." On that basis, sure, you can have the Echo, sufficient anima to teleport around, delve into dungeons, and fight Primals, since these are all stated in the lore as things every player character adventurer could have -- they're rare, yes, but PC adventurers are a very rare breed in the vast sea of Eorzeans. On the other hand, only one Adventurer can lead the charge into the Praetorium to defeat Gaius and the Ultima Weapon, so you shouldn't assert that you did that. That doesn't preclude you from having plot elements "inspired by" the MSQ that you make generic; for instance, maybe you raided a Garlean research facility and destroyed some kind of powerful magitek weapon after defeating the facility's commander.
That said, lots of people have varying opinions on this and where to draw the line. Some RP being normal people who may not even be combatants, and others RP "sword and sorcery heroes" in the classic Final Fantasy vein. There's no right or wrong answer, just varying RP styles -- though I'd argue that RPing that you're The Adventurer in the MSQ, experiencing everything they do in the same way, is wrong as it essentially denies the RP of others.
As a side note, periodically people do put together static groups that attempt to RP out the MSQ to varying degrees. You can either start one yourself or try to join an existing one, but be aware that you need to be careful about your RP outside of that group, and that many existing ones may already be further along in the story and unwilling or unable to add in a newcomer. To fully complete the MSQ through 2.3, you will need 8 total players due to the full party requirement of the later trials and the end of the 2.0 MSQ.
If you mean "Warrior of Light" as "The Adventurer," then yeah, no one RPs that to my knowledge (at least not publicly).My general rule of thumb is, "don't assert anything that not everyone could do/be." On that basis, sure, you can have the Echo, sufficient anima to teleport around, delve into dungeons, and fight Primals, since these are all stated in the lore as things every player character adventurer could have -- they're rare, yes, but PC adventurers are a very rare breed in the vast sea of Eorzeans. On the other hand, only one Adventurer can lead the charge into the Praetorium to defeat Gaius and the Ultima Weapon, so you shouldn't assert that you did that. That doesn't preclude you from having plot elements "inspired by" the MSQ that you make generic; for instance, maybe you raided a Garlean research facility and destroyed some kind of powerful magitek weapon after defeating the facility's commander.
That said, lots of people have varying opinions on this and where to draw the line. Some RP being normal people who may not even be combatants, and others RP "sword and sorcery heroes" in the classic Final Fantasy vein. There's no right or wrong answer, just varying RP styles -- though I'd argue that RPing that you're The Adventurer in the MSQ, experiencing everything they do in the same way, is wrong as it essentially denies the RP of others.
As a side note, periodically people do put together static groups that attempt to RP out the MSQ to varying degrees. You can either start one yourself or try to join an existing one, but be aware that you need to be careful about your RP outside of that group, and that many existing ones may already be further along in the story and unwilling or unable to add in a newcomer. To fully complete the MSQ through 2.3, you will need 8 total players due to the full party requirement of the later trials and the end of the 2.0 MSQ.
The Freelance Wizard
Quality RP at low, low prices!
((about me | about L'yhta Mahre | L'yhta's desk | about Mysterium, the Ivory Tower: a heavy RP society of mages))
Quality RP at low, low prices!
((about me | about L'yhta Mahre | L'yhta's desk | about Mysterium, the Ivory Tower: a heavy RP society of mages))
