Originally Posted by Caramel Cardinal
correct me if i'm wrong but don't you have to fight El Gigante before the choice bit and won't the achievement be for that instead seen as there in chronological order instead of the latter one
you kill the first one on the way back from the lake in the trapped area where if you let the dog go it comes to your aid
Exactly. This is what I thought. If the achievements are in the story order, then that one is the one where you have to fight him, where the Ganados free him and then got killed by the El Gigante himself.
We can't really tell which one is but the evidence point that our suggestion is probably the correct one.