i kept on wondering if i could talk to the girl on the tower
so i decided to hop on singleplayer and see if she could talk and yep she did
now i need to finish 2 quests which are
Qualifer (Defeat 1000 zombies)
and then there is
Barter - ?

i have finished qualifer but Barter - ? not, does anyone know how to finish it? i really want to finish it cuz i want to finally say that i have completed Arid