Completing two bonus missions awards a key that can open a locked specialized Void Chest in the Crusade’s final reward room.
PC / Global, live game and owned DLC
WHERE & HOW TO FARM
Where to farm
Blue diamond bonus mission nodes on a Void Crusade map, followed by the Supreme mission’s final reward room.
Bonus missions are a repeatable route objective for adding a key to your Crusade haul. Completing two earns a key, which you can later spend on a locked cache in the Supreme reward room. This supports targeted chest farming by increasing the number of locked options you can open; it does not identify cache contents or guarantee a particular reward.
A build that can complete those missions and Supreme.
A reward goal for choosing which final cache to open.
Start a Crusade and inspect the map for blue diamond bonus mission nodes.
Choose a path that connects two bonus missions without pushing the run beyond your build’s comfort.
Complete the first bonus mission and confirm its completion in the Crusade progress display.
Continue along the route and complete a second bonus mission.
Keep track of the key earned from the pair, along with any other keys collected during the run.
Proceed to Supreme and finish the mission to enter the final reward room.
Inspect the available chest information and spend the earned key on a locked cache that suits your current target.
Farming tips
Bonus missions also improve Crusade loot bonuses, so account for their value beyond the key.
Avoid adding a distant bonus node if its detour makes completing Supreme less reliable.
Repeat, collect and use
Repeat on each Crusade where another specialized chest is worth the extra missions. Two completed bonus missions earn one key per run; the farm is limited by available matching shards and successful Crusade completion.
Common mistakes
Counting ordinary missions toward the two bonus missions: use the blue diamond nodes.
Assuming the key opens the Supreme chest: reserve it for a locked specialized cache.
Taking every bonus detour automatically: weigh the extra key against route difficulty and run risk.
When to stop or switch
Stop detouring after completing two bonus missions for the key, or skip further bonus nodes if the route threatens a safe Supreme completion.