Counterattack | The main storyline XCOM: Enemy Unknown Guide
Last update: 11 May 2016
Intercepting the Overseer UFO. This time, our task is to shoot down the alien ship. Unfortunately, this fight is so demanding, that we need a well-equipped fighter. If you listened to my earlier advice, you should have at least one Firestorm armed with plasma gun - the aircraft should deal with the Overseer ship without much problem.
Protection class Overseer UFO wreckage. Another mission which requires us to eliminate all the aliens. I recommend to approach this fight with more caution, because there may be previously unknown alien: Elite Muton Sectopod and the Sectopod robot. Inside the foreign vehicle is also the commander, an Ethereal. This alien is very resistant to fire and has a lot of hit points, it has a range of up to psionic powers. Before opening the last room we need to gather the whole group and then send them to clean it in one turn. If possible, you can catch the Ethereal alive - interrogating him will speed up all of our research projects.
Examine the Ethereal Device. Another research project, which should take no more than a few days. After completion of the study, go to the next step.
Build Gollop Chamber. Like any other building, it requires one free room and appropriate amount of electricity.
Increasing the psionic power of our soldiers. As it has been described in section Psionics, the fastest way for increasing the psionic power of our soldiers is to invent the bonus Iron Will in the officers' school as soon as possible. Then, it is necessary to examine the soldiers and find a few who have the gift. In the meantime, it is worth to build at least one piece of Psi Armor and give it to the soldier with the highest coefficient of Will. If we can reach an adequate threshold, Dr. Vahlen tells us that we can use the Gollop Chamber.
Using Ethereal Device. NOTE: After completing this task, stop the flow of time in the game! Research will not continue, the soldiers will not be treated! Simply click the new button in the main menu of the XCOM base: Gollop Chamber, and then select our most talented soldier. After watching a short cutscene, we will be able to go on one last mission.
Attack Temple Ship. This is the last mission in the game. Its purpose is to provide an escort to our soldier-volunteer on the way to the bridge - this mission is quite long and during the duration of the encounter we meet all kinds of enemies. Fortunately, we get at the disposal of the new psionic power: Rift. This attack creates a vortex of psi energy, causing tremendous damage over a wide area and the continuing existence for several turns. Using our best soldiers and newly acquired skills, we will clean all the rooms. Often it convenes to reload your weapon and wait for Rift to be ready before entering into unknown territory. Opponents will appear in small groups and the biggest threat are: groups of Mutons with Berserker, Sectopods, and the final boss with his Ethereal bodyguards. Fortunately, just focus on the main opponent to end the game and watch the latest movie.