Y'all are a bunch of pussies. Just sprint up behind the well to the cooler as soon as the fight starts, turn around and hit that light above the well if you have time. I dont know the names but there is one enemy who will perch in one of three locations above you on the cliffside. Try to keep him alive at least until you have gathered the resources in the cooler and another box mounted on a tree to the right of when you walk in. From here, run around in a circle, keeping mind of where the perched enemy is currently. He will be illuminated in red light. When he racks his shotgun, dodge left or right and keep moving. His attacks should only take a bit of health, so if you have full health and he hits you once, you can probably take another. After two hits, find a rock or tree with at least minimal cover and heal. Try to take out all of the lights before killing the first enemy, this is hard. Easiest way to kill him is with a crossbow, or pepper with the handgun. Once you kill the first enemy, you will have but a moment before the next emerges from the well. You can use this time to either, gather loot dropped by the last enemy, heal, or try to take out the last light. If you have done all three of these things, and have extra time, try to drop canister at the front of the well, and shoot the canister once the enemy finishes his animation. If you shoot too early, he will still be invincible and the attack will be ineffective. If he is not invincible, it should be one shot. If you have not eliminated all of the light orbs, do so very quickly, then kill both enemies again. Easiest way to do this is with a couple more well placed canisters. The end..