.470 nitro express riffle
The code is 101987

Have only one elephant to pass in Namibia
Wen you r at the very top of the cliff, take your .308 semi auto rifle and put your cross hairs on the elephant that you can see clearly with your hunter sense.Then start firing rounds into its head.Do this for 1 minute.Then stop and it should still be acting like your still shooting it.note:this only works at the very top of the Cliff and only works with the big adult elephant right when the checkpoint starts.

To kill a alpha male
At the last level put on your hunter sense and you will see a wolf shoot  it. it will run after you when it gets close shoot it again then it  will run away follow it an kill it .ps. its the alpha male

A MONSTER?
In one of the forests you can encounter ferocious scary sasquatch that pulls you in the cave and eats you, and you can't kill it I tried! Go to a forest in Siberia and go to the end of the forest where there will be a deep black cave. Kill a deer and use it as bait. Then wait 1 min you will then hear a roar and footsteps, if you run away you don't die if you just stand there he will grab you and drag you inside and will eat you! I tried doing the same thing over and over again, now I can't find that cave and it's not even your objective it's a secret place. I'll give more additional information later, good luck!