Arenas

One doesn't get to the top without fighting in all different locations! There are 3 different arenas within Notorious 99, and to get on top, you need to master all of them. Fighting in battles earns you medals, which can lead to arena promotions once enough have been collected. Each arena has its own theme and different mercenaries can be found in crates depending on your current arena status.

Mercenary Unlocks
The starting arena, Carbine Reef has 5 mercenaries to obtain. Ironwood Glade has an additional 3 that can be unlocked, and Black Crucible contains the final 2. Once the mercenaries have been unlocked, they can be found in crates. You can use any mercenary you have found, but to have a chance to level up higher-arena mercenaries, you need to avoid arena demotion.

Arena Demotion
This happens when you no longer have the medals required to be in the current arena. In this case, you drop down an arena (such as moving down from Ironwood Glade to Carbine Reef). To promote back up, you need to obtain the required medal count for the next arena.