I could see potential usage for an option for CBRN scenarios, such as operations in the wake of a tactical nuclear strike or CBRN strike. As when enabled units have the PPE "skins" enabled (simlar to how they have night vision goggles and camo faces at night) and that everyone is slowed by the extra exertion, C2 is worse because of signal outages, etc. Both NATO and Russia train for combat operations under these environments.