Equalizer

The equalizer is a melee weapon for the soldier, it begins to spawn in non-chest sources on the same level that the heavy+medic boss appears. It is statistically the same as the shovel except that while the player's health is below 25 it effectively one hit kills anything. This is implemented by having the weapon do 6 damage every frame that the weapon is hitting the enemy and applying no knock back, resulting in thousands of damage every second.

Strategy
Mandarbmax says: A direct upgrade from the shovel, but only barely. Doing more damage when your health is very low is not a big deal because if your health is low enough for the bonus damage to take effect you should have other things on your mind, just get an escape plan if you can.