Private First Class.

My question is, do you have to get all 100 floors done to get pfc rank.

can anyone answer this.

I think if you just choose exit nyzul its considered sucess, so count toward promotion.

My understanding was always that Nyzul didn't count towards mercenary rank promotion, win or lose.

Assault ranks increase (or you unlock the quest for increase) after accruing 25 points. Any assault completed for the first time awards 5 points (including nyzul, but only the first completion of ANY floor nyzul counts for 5 points). Completed an already completed assault (including nyzul) awards 1 point. So you certainly COULD get to PFC by getting nyzul to 100, but entirely unneeded.

EDIT, to clarifying on first nyzul clear. I mean you get 5 points after making the Nyzul Isle Investigation go into your completed assaults list. You can do any numbered floor, as long as you win, that's 5 points. However beating nyzul at ANY floor after that, is just 1 point.

For Captain you need to finish all assaults.

Link: http://wiki.ffxiclopedia.org/wiki/Mercenary_Rank

thank you.

man this is going to take forever.

Unless youre millionaire, less than the amount of time till you get your alexs.

ToAU is intentionally time consuming, less so in the "actual work" aspect especially at 99 and iLvl but in the enforced limits on how often you can do the content. Assault tags are definitely at the core of this limit.

If you are on the road to a mythic, best get started now and don't miss a day of anything.