How will HW2 allow players to team up with their friends?
It’s been so long since I played HW1 that I don’t recall.
Also,
Will HW2 have 4v4?
And are there Spartan Companies for HW2?
You invite them before you start matchmaking? Did you try playing with friends in the Beta? No one knows at the moment if 4v4 will be included and as for Companies I do not see why not, they probably will support HW2.