The number of lines shouldn't be the problem. I edited game_sounds_player.txt to let me use whatever files I wanted.

i think there's not enough lines to cover all of the original ones, when i try to howl the mexican can scream andale for a few times and then throw some gachi line

The gachi lines do play, though?
I can make them louder tomorrow

I installed the mod but I guess the sounds is are not loud enough, I didn't hear any of the screams from other banditos and hardly heard my own

That link is working fine for me, but not for my friend. Tell us if it works for you or not.

Try this: https://gamebanana.com/sounds/45089

dropbox says that the folder we need to make the mod working doesn't exist