Make sure you have enough supplies to light the signal fire, though you don't want to be scrambling around to find materials to light a signal fire. I missed a relic I'm the first tomb in Syria at the start of the game. 'There is no great genius without a mixture of madness' - Aristotle.

This allows you go to back and collect anything you missed and get the 100. I recommend that when it's Day 10 (Night), you find a signal fire, so that way, when it becomes Day 11 (Day), you can summon the helicopter right away. After you finish the main story, three fast travel spots open up in Syria. The reason why I like this setup is because you can easily kill animals and enemies with poison arrows and they will grant food and warmth with each kill! Make sure to find at least ten Artifacts you can find them on Day 1 or Day 10, it doesn't matter as long as you get them. Tool Chest: Grants all enhancement tools and a large pool of resources.Hot Blooded: Killing enemies grants small amount of warmth.Bloodlust: Killing enemies grants small amount of food.

Toxicity: Grants unlimited poison arrows.It takes about two hours or so to get to Day 11.Follow my setup and you should have no problem surviving to Day 11. This achievement takes a while but it's not that hard to get done.

Rise of the tomb raider relics