The battlefield upgrade in the zombie mode in "Call of Duty: Black Ops 6" is a very important special ability in the game. A good choice is high-energy mines and healing auras. High-energy mines are relatively simple to use. Just go directly to the zombie pile. Just throw it inside.
How to choose zombie mode battlefield upgrade
In my experience so far, all five battlefield upgrades are good and have their uses. Below are my two current top picks, but that may change once I unlock full research for all upgrades.
Energy Mines: We all start with energy mines, which are a great option. It's easy to aim and fire, dealing massive damage when zombies clump together. Explosions deal area of effect damage and can help you get out of some pretty tough situations. Unlike other battlefield upgrades, you can start working on enhancements relatively quickly.
Healing Aura: Healing Aura is one of two optional support battlefield upgrades that can be very effective when used correctly. Healing Aura unlocks at level 33, and is especially good if you're playing in a pre-made party. When you play alone or with random players, they may wander around the map, which definitely reduces the potential.
Once you research all the enhancements, the Void Barrier becomes very powerful. Unlike Healing Aura, Void Barrier works best when you're playing against random players or alone. In later waves I sometimes get stuck somewhere. Having a Void Barrier is the perfect way to escape and avoid fighting again.
No matter which battlefield upgrade you use, always remember to research enhancements to increase their potential.
