In addition to benefits such as increased squad size and faster soldier upgrades, the GTS enables a relatively cheap Combat Tactic called Vulture, which offers an additional item for every item dropped in the field by an enemy.

When excavating, always keep an eye on time and resource costs.ДЄggressive Style Build Order: Guerrilla Tactics School (GTS) > Advanced Warfare Centre (AWC) > Power Relay > Proving Grounds (PG) build order opens up a wealth of options and a stack of benefits This isn't a recommended use for your first Exposed Power Coil and is better saved for any additional ones that you may have access to later on. The Exposed Power Coils represent an excellent opportunity to gain additional juice to power other facilities by first shielding the exposed coil and then building a Power Relay atop it.ДЄlternatively, a facility with a high power-cost can be built in its place, and harness the residual current running through the room, so it runs at a cost of zero power. This additional time can be mitigated by assigning up to three engineers to a room containing Alien Machinery - assuming you have some to spare. While excavating a room containing Alien Debris will be a speedy process that offers a few supplies as a reward, a room containing bulkier Alien Machinery will offer a far greater haul of valuable material - but take a great deal longer to get You can read more about the expansion in our XCOM 2 War of the Chosen guideД®xcavating alien debris aboard the Avenger costs time and requires an engineer but offers plentiful rewardsДepending on the randomised layout of your own Avenger, you'll see a mix of rooms stuffed with Alien Debris, Alien Machinery or Exposed Power Coils. For more on the new building types, read our feature on the Resistance Ring, Infirmary and Training Centre. If playing with the War of the Chosen expansion, consider tweaking this build order by adding the Resistance Ring to the front of this queue and swapping out the Advanced Warfare Centre (which no longer exists in the expansion) for the Infirmary. With this is mind, the information below represents some of the best build options and considerations dependent on your own priorities, and provides crucial intel to ensure you're always making the right choices for the resistance effort.

Xcom enemy unknown build order