Rocket

The rocket is a brown missile the player may pick up to use as ammo for the rocket launcher. Normally a single rocket, it becomes two at the I'm Too Young To Die and Nightmare! skill levels.

A direct hit from a rocket inflicts a range of 20 to 160 hit points of damage (determined using Doom's pseudorandom number generator); the explosion may also cause additional blast damage. Rockets fired by cyberdemons do the same amount of damage as those from the player, blast damage included.

Appearance statistics
In the IWADs the single rocket is first encountered on these maps per skill level:

The IWADs contain the following numbers of single rockets per skill level:

Doom RPG
The rocket appears in Doom RPG, with a somewhat different sprite. It gives the player either 1 or 4 rockets.