I guess you can take Abe as the trapper with the balls, it is true you have pretty much nothing to track the monster since he will be far away before you even land on the map, so tagging the nearest wildlife won’t be really effective, and just following a track of corpses won’t help either, but if you manage to see the monster and tag it just once … He’s pretty much done if its before an armored stage 2 and thats what bugs me.
Maybe they should make an internal cd on the dart, like first shot is 30 secs, if you land another one before the first one is over, its only 20 seconds, and so on, and you gotta leave the monster free of the darts for 15 secs before doing it again that way it would prevent abusive tagging and infinite chases, but obviously, abe should receive a little buff to compensate, maybe on his shotgun damage or clip size for example.
Either that of something else, but I don’t want to go Benny Hill like everytime I get tagged by Abe at stage 1, it is not fun nor interesting.
EDIT : Another idea would be to make the dart gun only one bullet and then reload, as well as reducing its accuracy, to prevent abe from tagging from 200 meters away.
OR, you can make two modes, one for tagging which is as usual, to tag the wildlife, then you gotta use your iron sight to enter a “sniper mode” with high density tracking darts to track the monster, which need a manual reload each time you fire. There is a lot of ways to tweak this and balance it out.