Knuckle Sandwich Trophy
Kill a Deadite with your bare handsThis trophy is earned as a Survivor.
During the early levels, you'll start a match with no weapons, and only your bare hands. For this trophy, you need to kill an enemy with only your bare hands. This is easily done by starting a match and seeking out an enemy randomly on the map. You can knock this one out very quickly. Another option is to just play, then drop your melee weapon for a moment while you kill the enemy.