Call of Duty: Mobile Season 3 brings a brand new Operator ability called Reactor Core that lets you play in third-person perspective (TPP) mode. You must first wait for Reactor Core to charge up to use it, and once you activate it, your in-game character will enter TPP mode after pulling out the Reactor Core weapon.
In addition, this Operator ability emits thermal radiation in all directions to damage the enemies around you within its range. In addition, the maximum HP of enemies hit by the Reactor Core skill will be reduced for a short time.
COD Mobile: How to Get Reactor Core Operator Skill
Reactor Core will be available for free in the COD Mobile Season 3 Battle Pass. If you want to add it to your loadout, you’ll need to reach level 14 in the Battle Pass, which you can do by earning Battle Pass XP by completing missions, challenges, and games.
However, there are a few things you need to be aware of when using Reactor Core. One is that your speed is reduced while using this operator ability, but you get a defense bonus. In addition, you should not use Reactor Core for more than three seconds, otherwise your HP will start to decrease.
https://www.gamepur.com/guides/how-to-get-reactor-core-operator-skill-in-call-of-duty-mobile-season-3 How to get the Reactor Core Operator skill in Call of Duty: Mobile Season 3