Alien Invasion | The main storyline XCOM: Enemy Unknown Guide

Last update: 11 May 2016

XCOM: Enemy Unknown, in addition to randomly generated missions, also has a main storyline that leads us to the final victory over the visitors from outer space. It includes both tasks at the tactical level (missions involving the elimination or catching certain foreign) as well as those that can be completed in a strategic part of the game: the establishment of appropriate installation or starting certain tests. In order to complete the storyline, it is necessary to perform the following tasks:

Conducting research on the project Xeno-Biology. This project is available from the very beginning of the game and requires four Sectoid bodies. After collecting the appropriate amount of ingredients simply select it from the list available in the lab and wait a few days. As a result of research that will allow us to capture live soon aliens is probably the most important thing on which we should work from the very beginning of the game.

Build the Alien Containment Facility. The room is a kind of prison for captured aliens - without it you can not interview the captured alien. In addition, we need more equipment to allow the enemy onslaught, which is our next goal.

Inventing and building the Arc Thrower. This object is the only weapon that allows the capture of foreign and creates a kind of a pair with the Alien Containment Facility.

Capture a live alien. It does not matter what alien we can catch, the important thing is to catch him alive. It is a task easier to accomplish during the clashes, such as Alien Abduction and UFO Crash Site. You can also capture the other types of alien missions, but with, for instance, the Alien Terror Attack mission, we will probably be more busy fending off attacks and defending civilians from the Chryssalids than finding the time to weaken and stun one of the aliens. Remember: you need to capture foreign bring it to 3 or fewer hit points, get closer to the 2-3 distance fields and use the Arc Thrower.

Interrogating a live alien. Interrogating is carried out as a research in the laboratory. Simply select from the list the alien caught and wait a few days.

Catching a live Outsider. This alien usually commands alien scout ships. We have to shoot the vehicle or discover its landing site and then send Skyranger with a striking group armed with Arc Thrower. Before we get into the ship, I would recommend to clean the entire area, and then prepare for the final assault soldiers. One soldier detects the Outsider and the rest tries to hurt him a bit (I would recommend using pistols).When the alien is at the end of life, there our "catcher" armed with a stun gun comes into play. Aliens will be delivered to the base in the form of crystal.

Outsider examination section. The next step is to examine part of the previously captured alien. With it, you will unlock a plan of attack on the alien base.