NARAKA: BLADEPOINT

Seems fairly simple right, just kill someone with your bare fists. The problem is you're quite under-powered vs someone with a weapon. What I did was load into the Bloodbath game mode (in the casual playlist) and then drop your 2 starting weapons. try and stay out of trouble until you find two or more people scrapping it out. Then run in if someone is low on health. I found holding the trigger to use the attack where you glow blue.

This took me a few tries but I did it in the 1st game I played in that mode.

Side note, Bloodbath is also a good mode to jump into if you have weapon-specific challenges to do for the weeklies or character challenges.