Something feels wrong about the perception check.
This is a "screw the players" mechanic that forces players to roll to learn secret information. In the old days, there was no perception check. The referee carefully described the environment, and players pushed, poked, looked, searched, and prodded the environment to find its hidden secrets. Even spotting an ambush did not force a roll; the referee described an environment, perhaps laid a few hints in there, and then the players could react accordingly.
The tracks stop right before they reach the pass.
If they look closer, then, yes, someone attempted to cover up the tracks.
And those tracks lead towards each side of the pass.
I am not forcing a Perception check for that. The players need to figure out if there is an ambush there on their own, using common sense and good judgment. Granted, those two things are in short supply these days, and with everyone a phone addict, many do not know how to interact with a natural environment or spot trouble like this.
"Why would people who hid in the bushes cover their tracks? I don't know! Hello?! Why are you hiding in there? Can you come out and explain why you covered your tracks?"
There is no rule to cover it in older games; it was what it was. The referee described the environment, the players were not on their phones, and they paid attention. Some skill-based games of the time did have perception-like skill mechanics, but D&D never did. Then again, the old D&D way of doing it was superior, and we only used those perception mechanics in edge cases and for situations where things weren't that clear.
These days, the entire passive perception "industry" and the "roll to see everything" sort of design slows the game down, and it sucks. It feels like the characters are looking through the world through tiny holes in cardboard boxes and rolling or having to check a number to see anything in the environment. Perception isn't a skill anymore; it is a set of blinders to view the world through.
In older games, we never needed the entire perception dongle.
Describe and let them react.
No rules. No numbers. No checking character sheets. No rolling the dice.
Player skill, listening, and using your head instead of your character sheet matter. The referee's descriptions matter. The skill on both sides heightens the experience.
Yet the perception trope seems overused, and this one mechanic defines 2/3rds of the interaction with adventures and the game. It is too important, too overused, and anything this prevalent should be designed out of the game. Otherwise, the game feels like it relies too much on one mechanic.
Imagine if every turn, you needed to "roll to move." Fail your movement roll, and you can't move. Fail your perception check, and you can't see or hear. The perception check is every character's eyes and ears into the world. Granted, it is only for situations where there is uncertainty involved in "if you see it," but the entire mechanic is far, far too overused, slows down play, and eliminates player skill.
The perception check is a terrible design.
Also, Wisdom should cover perception. This also falls into the category of having a "lift heavy objects" skill to replace the STR check. We have skills that duplicate ability score checks, and that is another sign of a terrible design. I don't know how you fix this other than admitting it is a flaw in the D&D 5E design and designing around these "rules bottlenecks" in the next edition.
When it started, it felt innocent and cool. These days, it acts as the default eyes and ears of every character in the game.


