During the prison of elders, after playing for 3 hours and finaly getting to round 5, me and my fireteam had lag issues, my teammate fell through the floor into the treasure room after respawning in the airlock, and after leaving the fireteam, was not able to rejoin. i dont know if this was intentional or not but i need the ability to invite back my fireteam if they fall out of the game. similar occurances have happened over the past 4 days, i have not been able to complete the level 32 prison of elders a single time because of the inability to invite my fireteam back. prison of elders is the most fun ive had in this game yet, but im so tired of not getting rewarded after playing so long, non stop since release, instead im met with an inability to complete the challenge.