Armory easy money...
	Can't Find the Bomb...
	DJ Artyom...
	God Mode and Infinite Ammo...
	Moral Choice Indicator...
	Preventing Accidental Ammo Dis...
	Ranger Pack DLC Achievements...
	Realist Achievement...
	S.T.A.L.K.E.R. Reference...
	Sneaking and Armored Suits...
	Steam Achievements...

At the Armory level, after meeting Andrew the Blacksmith, you have access to ammo and two guns at his shack. You can pick them up, trade them at the weapon shop for a "Duplet" for a 100-200 bullets profit, giving you enough money to buy the best weapons available, a suit, and load up on ammo.

In 'Cursed', Artyom is tasked with destroying the tunnel and airlock where the nosalises (mutants) are spawning from.

Position yourself so Khan and the defenders are behind you for the following directions:

The bombs are at the end of the right tunnel.

Destroy the left tunnel by "using" the glowing bomb hologram on the tunnel supports at the dead end.

Destroy the airlock by going up the stairs and using the bomb holographic on the supports. The stairs are to your right (and a little forward), if you are standing with Khan and the defenders at the station's entrance.

Tasked with an S.O.S. message from "Defense", you complete this objective in "Outpost". Enter the first Nazi controlled building (the one where a Demon snatches a fleeing Nazi in a preset condition) and battle through it.

Get yourself on the upper level of that building. On the upper story, there is a hallway with three tripwire mines (and two Demons who are easily exploited for the Demon killer achievement). Navigate through the mines and check the right room at the end of the corridor. There is a ramp leading to the rooftop.

On the rooftop, you should see a pre-set corpse with a Kalashnikov. The communications apparatus is on the corner of this rooftop.

Alter game files at your own risk and always make backups. Navigate to the game folder, find the user.cfg file and open it in a text editor. Change the following lines and save cahnges for the desired effect.

Change g_global_god off to g_global_god on
and change g_god off to g_god on for God Mode

Change g_unlimitedammo off to g_unlimitedammo on for unlimited ammo.

While there are obvious moral choices in the game (where both decisions are obvious), there are more subtle moral choices that will determine which ending (just two) you get at the end.

When choosing an action, the game world will temporarily flicker with a rust-ochre color (and you will hear faint murmuring) if you made a moral choice (good or bad).

When pumping the Tihar (Pellet Gun) or the Hilsing (Spear Gun), you can accidentally discharge ammunition when the animation resets to "fire mode" (because the primary fire button or Right Trigger also works the air pump).

Apparently, the game doesn't tell you the Alternate Fire (or Precision Aim) also works the air lever. If you use the Alt.Fire or Left Trigger to work the air pump, you will not accidentally discharge any ammunition until you are ready (the Tihar and Hilsing only have aim-down-sight for secondary fire).

Achievement	How to unlock
Air Bender	Kill 30 humans with only pneumatic weapons.
Gunman	Kill 50 enemies with the heavy automatic shotgun.
Last Man Standing	Complete the game in Ranger Mode Hardcore.
Shocking	Get 50 kills with the Volt Driver.
Sterling Effort	Kill 50 mutants with your knife.
Sticks like a bur	Kill 15 enemies using sticky grenade.
Stunning	Get 25 kills with the alternative fire of Volt Driver.
Survivor	Complete the game in Ranger Mode Easy.
Weaponsmith	Kill at least one enemy with each weapon type available in the game.

Decline the kid's offer to lead you at Riga Station to earn this secret task.

In the Library, the two rangers accompanying you will read through the titles of several books, including one called Roadside Picnic (1977) by the Strugatsky brothers.

The book was the basis for Andrei Tarkovsky's 1979 film STALKER, which in turn was one inspiration for GSC World's 2007 videogame of a similar name: S.T.A.L.K.E.R. Shadow of Chernobyl.

At Armory Station, before climbing into the train car, you can purchase a Sneaking Suit for 100 military cartridges from the vendor across from the Ammo Exchange.

Note that the vendor next to the Stealth Suit vendor sells an Armor Suit which will decrease the damage Artyom takes (both suits can be worn, but only the last one visibly reflected on the body model).

At Polis, a vendor next to the Ammo Exchange sells a similar Armor Suit (same price as the other suits).

Complete the following tasks to unlock the corresponding achievement. To view your achievements and stats in Steam, select "Community", then "My profile", then "View all my games", then the game and view stats.

Achievement	How to unlock
Air gunner	Kill 30 enemies using pneumatic weapons.
Cowboy	Kill 30 enemies using revolvers.
DJ Artyom	On the level "Outpost" reach the radio tower and broadcast the commander's message.
Demolitionist	Blow up the tunnel and airlock at "Cursed" station.
Enlightened	Find the truth.
Exorcist	Complete levels "Ghosts" and "Anomaly" without dying.
Explorer	There is no place in metro you did not visit
Fire in the hole	Kill 20 lurkers.
First blood	What doesn't kill you, makes you stronger.
Fugitive	Complete level "Armory" without getting caught.
Generous	Help the poor, a coin for the kid, medicine for the sick. You help everyone you see.
Heavy Metal	Kill 15 enemies using stationary machine gun.
Heavy Reader	Kill a librarian.
Hedge-hopper	On the level "Frontline" kill all of the enemy Red Army and Fascist Soldiers.
If it's hostile, you kill it.	Become a true ranger.
Inquisitor	Kill 2 demons.
Invisible man	Complete "Frontline" level without killing anyone.
Ka-Boom!	Explode 10 enemies.
Merciful	Complete the level "Black Station" without killing any Fascist Soldiers.
Metro Trader	Make 10 deals in weapon shops.
Metro dweller	A true metro citizen. You know everyone and have seen everything.
Ninja	Kill 10 enemies with throwing knives.
Nosalis hunter	Kill 30 nosalises.
Old school	Kill 30 enemies with the double-barreled shotgun.
Pathoanatomist	Kill 5 amoebas.
Pyro	Kill 5 enemies with a flamethrower.
Quick Draw	On the level "Hunter" kill the nosalises before they break through the ventilation grilles.
Quick-witted	Break the support and activate the chandelier in less than 20 seconds.
Raider	On the level "Depot" silently kill the first guard and break into the Fascist station unnoticed.
Ranger	Find all Ranger stashes in Dead City 1 and 2
Realist	A coin for a hungry kid? Get a job.
Rescue Ranger	Save a group of "Reds" from Fascist captivity.
Scrooge	Save 500 military grade rounds.
Sherlock	Found all gold ammo, hidden throughout the stations.
Slice & Dice	Kill 20 enemies with the knife.
Sniper	Make 25 headshots.
Soft Touch	Disarm 10 wire traps.
Tank Buster	Destroy fascists' Panzer.
Wheeler-Dealer	Exchange 500 Military Grade 5.45 rounds at Exchange kiosks.