Weapon trials way to unspecific

The Weapon Trials in Apex are way to unspecific to attempt. You gotta just play and hopefully at some point complete one. Two of the R99 Challenges are missing several key pieces to the criteria for completion. Like having to have bullets left in the mag on level 40 (knock an enemy with hipfire no trigger release) and level 100 no miss spray to the body (but you cant knock the guy when doing it) and it says nothing about it. Please fix these arbitrary trials