I keep getting booted to orbit ha ha

As someone who completes Overthrow events as a Solo player in the normal Patrol Zones (rather than queuing for the matchmade Activity) I receive [i]roughly[/i] three Class Items for every two fully completed Overthrows; occasionally slightly less or slightly more. So it is certainly possible to receive more than one per full Overthrow. The way the devs explained the system is that each Overthrow Chest opened (specifically the Chests dropped whenever completing an individual step in the process of a full Overthrow, not including the randomly spawned Faction Chests) adds a stacking bonus percentage to your chance of getting a drop based on the Tier of the Chest (with Tier One Chests granting the smallest increase and Tier Four granting the largest). This stacking bonus resets upon getting a Class Item drop and carries over between Overthrows and into other Pale Heart activities. Due to this structure it would be in your best interest to [u]fully[/u] play through each Overthrow; starting a new Overthrow after getting a drop partway through would mean building up your accrued bonus from zero starting with Tier One Chests again rather than continuing and being able to get a jumpstart with Tier Two/Three/Four Chest bonuses. (΄◉◞౪◟◉｀)