Xenoblade Chronicles X - Pre-Chapter 11: Hope Springs Eternal (Hope Recruitment)
Again, this is not required to beat the game, but I opted to try to find more of the recruitable characters. We found Hope earlier in the game, but I either didn't care or didn't meet the requirements to start this mission. Luckily, by doing it this late in the game, we have the Skells/Dolls that let us get where we need to go faster, potentially turning a lengthy mission into something simpler.
In terms of character, Hope is a support. I think she is considered to be the weakest of the bunch, but if you are willing to put in the grind, you should be able to make anything work. While I will not be using her right away, she may put in an appearance or two when I am trying to wrap up the game before the servers go down.