I haven't played the new stuff too much, but here are some quick thoughts:
1. Matchmaking/accessing the ISO vaults and bounties is very odd in how it is implemented. Say you want to do an ISO vault run for all three vaults. First you select the bounty, run the bounty, and finish it. Great. Now you have to go talk to mother somewhere else (that isn't marked from a distance) to start the second one. The only reason I know where this is is because I saw a TP video on it. Repeat for third round. I feel it would make a lot more sense to just have a single 3 ISO Vault Run bounty that guides you