XCOM: Enemy Unknown is a turn based strategy game developed by Firaxis for PC, XBOX 360, Playstation 3, OS X, and iOS.

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Amount of turns passed affect hearing?

Does the amount of time (turns) passed in a mission affect the chance to hear the enemy? For example I think if I am slowly moving my squad around the map I can hear the enemy more often which is a ...
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5answers
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How often should my troops use Overwatch?

When my troops are deployed on a mission, how often per turn should I use the Overwatch command? Are there particular classes that are better at this, or is each class equally useful in this regard? ...
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3answers
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How many civilians do I need to save on terror missions?

The terror missions I've been on have had either 16 or 18 civilians to save. What are the thresholds for success and the corresponding differences in rewards in terms of number of civilians saved? ...
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2answers
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How can I kill an enemy under mind control?

I was in a mission and had only one soldier with moves left and a berserker. Since I couldn't kill it with just one shot I mind controlled it. Then on the next 4 turns I got stuck with it, waiting for ...
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1answer
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Is there a way to speed up time just a little bit?

Let's say a large UFO is detected but I only have poorly equipped interceptors in the area. I have a Firestorm with plasma cannons in transfer, but it's going to take another few hours to get to that ...
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1answer
9k views

What do the icons next to a soldier's rank icon mean?

In combat, your selected soldier's rank is displayed as an icon at the bottom left corner of the screen. Sometimes a yellow star or a white cross will appear on top of it. What do these icons signify? ...
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Does the type of kill matter for promotion?

The main factor when it comes to promotions seems to be the number of aliens a soldier has killed. Does it matter what kind of alien is killed? Does a strong alien give more experience than a weak ...
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1answer
1k views

Why aren't my soldiers getting promoted?

I have a character with 8 missions and 6 kills, and still she is a rookie. Some seem to get promoted, while others get sent on missions, make kills, and yet stay as rookies. Is this a bug, or is there ...
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1answer
8k views

What is a research credit?

Interrogating a sectoid resulted in my earning a research credit, the exact message being: Research Credit Earned: Beam Weapons However, the game doesn't explain what a research credit is. What ...
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How much do additional engineers reduce manufacturing costs? [duplicate]

Possible Duplicate: What affects manufacturing costs? There's a tooltip that mentions that more engineers will decrease the cost of building items (and facilities?). How much does each ...
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2answers
2k views

How badly does 'Hunker Down' limit my units sight?

I understand that the Hunker Down command gives a defensive bonus and a sight penalty. Does anyone know exactly what this penalty is?
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How does Line Of Sight work?

I'm a little confused by how the LOS system works. On a few occasions I've had my units be attacked when I thought they should be hidden from the enemy. I do not mean just in Full Cover since I ...
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How to activate the Elite Soldier Pack for XCOM PC Version

I honestly tried all common sense approaches to activating the Elite Soldier Pack for my PC DVD version of XCOM - Enemy Unknown and have not managed to do it. The leaflet that comes in the box says ...
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When do my soldiers gain ranks?

Soldiers gain experience from killing enemies. At what experience levels do the soldiers advance to the next rank?
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Is the story progression time based or event based?

In other words, is it possible to delay the story progression (and therefore tougher enemies) through not researching certain artifacts and not doing certain missions? Is it possible to "fail" story ...
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2answers
5k views

How to scramble multiple interceptors in XCOM EU

Is it possible to scramble multiple interceptors in XCOM: Enemy Unknown? As soon as I click on 1 it is launched, I would like to scramble all of them together.
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1answer
2k views

Is it possible to have Ironman enabled by default?

I prefer to play the game in Ironman mode, but I need to enable it every time I start a new game. On the off chance I forget to do this I either need to continue playing with it turned off, or restart ...
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2answers
897 views

Do aliens killed by car count as kills?

A soldier fires rocket or throws a grenade not directly at aliens, but at car they are using for cover. Will it still count towards this soldier's kills?
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1answer
779 views

Reorder action keys?

So the order of the actions are different for the different classes. Luckily "fire" is always on 1, but I'd like "overwatch" to always be on key 2. Now it changes between 3 and 4 depending on the ...
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2answers
982 views

Where is UFOpedia?

I can't find UFOpedia in the new XCOM. Is it there at all? If it is, how do I access it? If not, then where can I see things like for example detailed stats for weapons, armour and aliens?
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1answer
1k views

How can I overcome color bleeding issues in cutscenes?

I finally managed to sit down and play some XCOM Enemy Unknown, and everything works brilliantly save one strange graphic issue. In the game's various segments that have more of a cutscene look, ...
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2answers
6k views

What does it mean when the Alien Icon has a yellow reticle on top of it?

At the bottom right of the screen, there is a red or yellow alien icon for each alien that the currently selected soldier can see. Occasionally, when a sniper is selected, some of these icons have a ...
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1answer
25k views

How do I stabilize soldiers?

So I've got a critically wounded soldier lying around. My medic has moved into range, but the med-pack icon remains greayed out. However, I can still select the med-pack and target the soldier, and ...
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1answer
1k views

What is the effect of light, medium and heavy armor?

Armor in XCOM is described as being either light, medium, or heavy. What are the effects of wearing a particular type of armor?
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3answers
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Should I cover or hover?

Archangel armor, available late game, gives a soldier the ability to fly. What are the considerations when deciding whether a soldier should be covering or hovering? Does one provider better offense ...
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3answers
13k views

Which armor provides the most protection against regular damage?

There are 3 top armors in the game: Titan, Archangel and Psi armors. Titan provides 10 bonus health, Archangel provides 8 bonus health and Psi armor provides 6 bonus health plus 10 defense. Archangel ...
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2answers
1k views

Do medikits repair armor?

If your soldier takes more damage than he has bonus health from armor, his health will start depleting, resulting in him spending days in the infirmary. Does healing a soldier restore his armor's ...
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1answer
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Is it possible to keep all sixteen countries in the XCOM coalition?

I'm on my third XCOM campaign (normal difficulty) in an attempt to keep any countries from quitting the coalition and it is very clearly not working. My troops are strong enough to handle the early ...
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2answers
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Does alien tech scale with time in XCOM: Enemy Unknown?

If I forgo completing the Alien Base Assault mission for a few game months, will the aliens advance as well, making the mission harder? I realize incidental missions get more difficult and scale, but ...
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1answer
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What is the range and success rate on the Arc Thrower?

I'm ready to capture my first Alien, but I'm not certain what the range and success rate of the Arc Thrower is. I'm playing on Ironman, so I can't really afford to experiment to find out in the middle ...
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1answer
4k views

What requirements are needed for a soldier to use the Gollop Chamber?

How do you get a psionic soldier who's powerful enough to use the Gollop Chamber that you've built?
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5answers
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What determines if a soldier is gifted with psionic powers?

The game mentions a soldier's will influencing whether they have a gift or not. Since you can only test a soldier once, does that mean promoting a soldier a couple of times before testing might ...
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1answer
2k views

Can you tell what enemies your soldiers would be able to see/fire on before moving?

When moving, XCOM provides a helpful blue line indicating what path your soldier will take. This is extremely helpful to see BEFORE you move, in situations like: When you're trying to sneak up on ...
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2answers
7k views

How do soldiers advance their psionic skill? [duplicate]

What is needed for a soldier to advance his/her psionic abilities?
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1answer
2k views

Is it possible to close doors in X-Com: Enemy Unknown?

I know left-click would open a closed door without making too much sound, lifting some fog of war. Is there a way to close them back, giving yourself some tactical defense in protection-type missions? ...
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1answer
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Where's this “Unit Analysis View”?

When I finish an autopsy, the research report ends with We may be able to gain further insight into this creature's unique abilities in combat if another specimen is targeted in the field in the ...
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1answer
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in XCOM how do I fire or choose another soldier

I just got myself the new XCOM, started the singleplayer campagin and went through the first mission, got back to HQ and made some choices and then comes the second mission. Player is directed to ...
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4answers
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How do I select Mission Control? (Tutorial)

I'm playing through the tutorial for XCOM. I've just told the Research Labs to build the alien zapper, and it tells me to "go to mission control". However, I keep clicking on the button and nothing ...
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2answers
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What are all of the priority missions needed to complete the game?

I just finished assaulting the alien base. I feel like I'm getting close to the end of the game, though, and I don't like it when the ending comes up abruptly with no warning. How many priority ...
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1answer
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Can the assault unit use the Arc Thrower after run and gun?

I currently have a support unit using my only arc thrower, but I am wondering if I can give it to the assualt unit so I can close the gap with run and gun (or what the real name of the skill is) then ...
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1answer
2k views

Is it possible to hit your own men with normal weapons?

I know you can damage your own men with rockets and grenades, but when firing your regular weapon is it possible to cause friendly fire? I've had a few situations where two troops were close together ...
6
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1answer
1k views

Are some enemy types missable?

I assaulted the alien base and killed the sectoid commander. Shortly after that I shot down the overseer ship and made the game progress forwards. Now I never see any sectoid commanders and instead ...
4
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1answer
2k views

How does critical chance work?

When does the critical hit calculation take place? Does a critical hit guarantee that my shot will strike its target, or is a critical hit chance only calculated if a shot hits the target in the ...
7
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1answer
940 views

What are the percentages above the alien icon?

When a unit sees an alien, an alien icon appears on the bottom right corner of the screen. When the mother hovers over it a percentage appears. The percentage is sometimes different from the chance to ...
55
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2answers
71k views

What does the full research tree look like?

I find myself constantly wishing I had some idea what the research tree looked like. For example, if I want to unlock plasma weapons, do I have to go down the laser weapon path first to unlock it, or ...
23
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4answers
4k views

What is an “X-Ray”?

The soldiers are always going on about x-rays, but I have no idea what they're talking about. What is an x-ray? A lot of times, they'll mention x-rays when I kill an alien, but I think I've heard ...
9
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2answers
21k views

What unlocks the ability to build a workshop?

I've been playing on Classic and one thing I've found is that I need to get a jump start on Satellite Uplinks so that I can keep the panic level under control. However, to build them, I need 10 ...
8
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2answers
4k views

What affects manufacturing costs?

I've been noticing that as I progress through my game on Classic Ironman, the cost for me to manufacture satellites keeps going down. It was §100 when I started the game, at another point it was §78, ...
3
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1answer
4k views

Soldiers stuck as wounded?

In my barracks there are some soldiers that just say "wounded" without "(x days)", some of them have been like that for weeks without any change. How can i get them back? is this a bug or something ...
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2answers
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How long do crashed UFO's last?

I shot down a UFO, but a few of my "must have" soldiers are recovering from wounds. I would like to send them in 4 days, or 2 if I had to. Will the crash site disappear or otherwise go bad if I wait ...