Tactical packages

Tactical packages are gameplay enhancements featured in Halo 4.

Overview
Tactical packages are software updates for the MJOLNIR [GEN2] armor that increase a Spartan's combat readiness and responsiveness. They can be accessed through each loadout either before a match is started or during a player's respawn time.

Trivia

 * The Resistor tactical package was included as part of the Champions Bundle, released in August 2013. As such, it is not available in the original game's Spartan Ops. If a player has it equipped in their loadout, it will automatically revert back to "None".
 * Resistor did not not appear in Halo: The Master Chief Collection from launch in 2014 until it was added with the December 2022 update. Unlike the original game, it can be used in Spartan Ops.