This mission will get you using those cattle hustling skills you learned a bit earlier on. The main difference with this herd though, is that they’ll split up from the group, meaning you need to keep a constant eye on your radar to watch out for any dots that appear.
This signifies that the herd has split, so you need to guide it/them back to the main herd before continuing. Remember to go to the opposite side of where you want them to go, and soon you’ll gather them all by a large oak tree.
When the lightening goes off, the herd will scarper for the cliff up in the distance! You need to race your horse to the cliff edge first (being very careful not to go over the edge yourself). As soon as you see the herd coming your way, let off a firing shot over their heads to get them to slow down quicker.
Now make sure the herd make their way back to the ranch (making sure any stragglers re-join the group) and you’ll complete the mission as soon as they’re all in the pen.