Ice bomb

The ice bomb is one of the auxillary weapons in Doom Eternal. Fired from the shoulder-mounted launcher of the Praetor suit, the ice bomb is a projectile that douses the target in "freezing gasses", causing a flash-freeze. The frozen enemy is then left immobile and helpless, and shatters after enough damage has been inflicted upon them. It is selected as an ammunition type versus the frag grenade via a toggle key or button ("G" by default for keyboards).

Tactical analysis
The ice bomb can be used to hold a target in place while you attack them, keep a dangerous enemy from fighting back, or to make a quick escape when surrounded. It is strongly recommended when fighting whiplashes due to their fast movements, and it can be used to hold a pinky or spectre in place while you attack its vulnerable rear side. Spectres and whiplash spectres that have been frozen can be targeted with the rocket launcher's Lock-On Burst mod.

Enemies frozen by an ice bomb cannot be glory killed; instead, they shatter once enough damage has been inflicted on them. It also has no effect on demons that are possessed by a spirit or have been buffed by a screecher, but will freeze enemies that are under the influence of a buff totem.

In The Ancient Gods, Part Two and Horde Mode, frozen enemies will drop additional health bonuses when they are struck with the Sentinel Hammer.

Upgrades
The ice bomb can be upgraded by finding and spending Praetor suit points.
 * Faster Ice Cooldown - the ice bomb takes less time to cooldown after firing
 * Permafrost - Demons remain frozen for longer
 * Ice Drops - Damaging and killing frozen enemies will drop health
 * Frost Bite - Damage dealt against a frozen demon is increased

Trivia

 * Airborne demons like the pain elemental can remain suspended above the ground even when frozen. An exception to this is the lost soul, which is outright slain instead of freezing.