No mate, I haven't done that one yet but the map is still really busy when you zoom out!
I opened up the safe houses for fast travel around the map, and to unlock all of the different weapons vendors. They all seem to have different guns. If I'm getting walloped on a mission, I warp back to where I know the different guns are, then warp straight back to retry the mission.
When you get further on Jaxx, it's a mission in itself just to fight your way through the street crews, to get to your chosen mission lol! You end up with no grenades or special ammo before you even start it!
And also because Timey told me it was a good idea to unlock as many as you could do easily. He wasn't wrong!
We worked out last night that if you do a mission with just two of you, the initial wave of snipers etc are all red. If you add a third person to the party, they go purple. With four of you, they go yellow! So if you're not all on top of your game weapons level wise, it's actually much easier to play just as a pair!