I think you can play DPS Glad/PLD but it would requires alot of investment in terms of gears, if you want people to accept your 'different than mainstream' way, you have to be good and not subpar, you will nto be wearing AF either because when it comes to DPS, you really rely on gears. I do believe however well geared DPS Glad can outparse subpar DPS class, but not the good DPS players.