i would love to have this "In game chat box. Ive come across times in the beta where i had no one to play with so i walk up to people in the tower and have to message them to ask nicely if i can join their fireteam. It would be more simple if we could even have at least preset text things saying like: May I join you fireteam? Yes No etc. This would simplify things and create more interaction within the tower and allow the players to never be alone."