Melee

Melee is a physical attack used by Humans and the Chimera.

Resistance: Fall of Man
In this title, the player melees enemies by striking them with the butt of the current weapon. It is effective against Hybrids and Grey Jacks, but is not recommended unless the player is very close.

The Chimera seem to have a stronger melee attack, as when they melee, they can take quite a chunk out of the player's health or sometimes even kill them.