This mission is, in some way, a continuation of the tutorial. On the cut-scene (#1) you can see your sniper-spotter pair spreading out - spotter stays on the rocks, where he has a better overview of the situation, and you walk downhill with a task of going through the ruins. Your spotter will direct you via the radio.

Move forward along the road marked with successive, white dots displayed on your screen (#2). You can change your weapon to silenced pistol. Move silently and with caution, go crouch if needed and have your eyes in the back of your head.

After a while your spotter contacts you again and orders you to take down one of two bad guys standing on the scaffold to the left (#3). Namely, you have to kill on spotter's signal this dude on the left - in this case use your sniper rifle. At the same moment your spotter will shoot dead the second man.

Proceed further through the ruins, go prone on your spotter's sign and crawl a little bit ahead (#4). Shoot the guy who may appear in front of you when you're standing up again.

After a moment your spotter orders you to take cover in the bushes near the road. Stay silent and let these three guys who are running by this sandy road pass you. As a matter of fact you can kill these scamps when they passed your position, by throwing a hand grenade in their direction (#5).

After a while your spotter orders you to take a position behind the wall located a few meters further, on the left roadside. You can see several muggers standing near the bonfire on the road behind that wall. You have to wait till they spread out, and then sneak - on your spotter's mark - to the right, across the road to some ruins. However, you can also quickly kill these guys near the bonfire with a 2nd frag grenade (#6).

After doing this, shoot dead some more thugs running towards the bonfire along the road leading from the ruins on the left (#7). However, try to take down all of these slayers of local military junta fairly quickly, in order to avoid raising the alarm by them.

Obviously, you can also listen to your spotter's tip: don't start a gunfire and sneak on his sign across the road to the ruins located to the right from the wall you're hiding behind. A moment later silently kill a dude you'll see between the columns (#8).

Sneak through these Maya's ruins, all the time move silently and with caution. Generally, you should avoid making a noise, becoming involved in open firefights, but nothing bad should happen to you, if you raise Cain with killing loudly several enemies. When you're wounded, heal yourself by mainlining a hype of medicine into your vein (#9).

Proceed along the road displayed on your screen with white dots, passing some factory or refinery installations (#10). You can take a look at these installations using your optic sight, and take out all the bad guys you're able to see on buildings' rooftops/containers and on silos. However, don't kill the scums who are standing near some laborers on this sandy road leading through the refinery. Now you have to meet with O'Neill (your spotter) on his sniping position.

When you go to this meeting you have to take out one more enemy standing in the grass and presenting to you his back. It's a superb occasion to train close combat skills using your knife (#11). Sneak behind that rock in front of you, aim at the enemy's torso or head and throw your knife at him. Obviously, you can also sneak a few meters further, in order to hammer a blade of your fighting knife in a soft body of your victim.

After a moment you'll have to familiarize yourself with the next element of your equipment - a rope ended with an anchor. Use this rope to climb higher, on some rocky edges, for example, or to rappel yourself to the ground, or to get over the chasms. So press 6 to equip yourself with this rope now, take a look upward and press LMB (Left Mouse Button), in order to throw an anchor towards the red circle being visible on one of the boughs (#12). If you don't see such a circle, just take a walk around with your eyes pointed upward and the circle should finally appear on the bough. After hooking a rope to the bough, climb up on it, by holding the buttons used by you when you're controlling your character's movement. Rappel down a little and press Space to jump down to the ground, when you're on the other side of the chasm.