Fist

The fist is the most basic weapon out there. Punching is almost useless unless you've collected a berserker.

The actual punch attack is started two frames into the punch animation. The fist isn't quite extended at this point, but keeping that in mind will help time your punches effectively, if you're crazy (or bored) enough to use it.

In original Doom, if you have a chainsaw, you cannot switch to fists unless you have berserk.

With berserk powerup, the fists are very strong.