Simply question about "Beta phase 1"

[Radacci]

I wonder if you can pick Gladiator right off the bat, or do you have to unlock it with quests. Will there be enough quests to hit the beta cap, if they only have starter area would people run out of quests to lvl, or will we get an increased exp rate to test out 25 and 35 dungeons?

Did you even read the comment? it specifically says you need to complete certain objectives to unlock.
Ofc there will be, otherwise there's always Leves.