XCOM 2

Missable!

If you are following the Road Map, then this will be your first playthrough. Before you begin, make sure you do not enable the tutorial. The events that happen in the tutorial will negate this trophy. You also probably want to attempt this trophy with Ironman disabled, as that will allow you to reload an earlier save as and when things go wrong. Seriously, your soldier can have a 97% chance to hit a target and they will find a way to miss. You will have enemy pods appear in places you didn't expect, critical hits to your soldiers at the worst possible time and failed attempts at hacking a device that puts your entire squad at risk. Due to this, you are going to need a Plan B.

If you are not playing with Ironman enabled, the game will create an autosave at the beginning of every turn. It does this for three turns and then begins overwriting the oldest autosave with each subsequent turn. Don't be afraid to abuse this system. Take an action, see what happens and then reload an earlier save if things don't go your way. That may sound like you're abusing the system but it's a useful tactic and a great learning experience. Over time, you will get more comfortable with the game and find yourself relying less on backup saves. Even so, I would recommend making a manual save every now and then (e.g. at the beginning of each mission) so that you are not completely reliant on an autosave that may eventually get overwritten.

The good thing about this trophy is that its requirements are directly in-line with how you should play XCOM 2. You should never let your soldiers die. In fact, it’s very likely you will complete the requirements for this trophy in most of your playthroughs anyway. The soldiers you have are your most valuable resource. Yes, you can recruit new soldiers from the Barracks but they start out weak and take time to learn new skills. That's time you don’t have because the aliens will not wait for you to catch up. By mid-game (around June) you want to have a small group of soldiers that you are using on every mission, because stronger aliens will continue to appear at the start of each month (until August anyway, when they finally plateau out) and you will want to be able to match them with equally strong units. Bringing a bunch of Rookies into later missions is suicide.

In order to get this trophy, you cannot allow a single soldier to die. A soldier dies when their HP is reduced to zero. Sometimes. Other times, they are put in critical condition. You will know this happens because a message and a "bleed out" counter will appear, allowing you three turns to reach that soldier before they officially die. To prevent a soldier from bleeding out, you can:

1. Stabilize them with a Medikit
2. Call in an EVAC helicopter
3. Complete the mission before the counter reaches zero

The first two options require moving another unit next to the fallen soldier. That soldier must be carrying a Medikit to stabilize them or they must pick up the fallen soldier and call for an EVAC by pressing . Calling for an EVAC will remove both soldiers from the field of battle but it will prevent the wounded soldier from dying. You will need to do this once for Nick of Time.

You can purchase the "Stay With Me" upgrade from the Guerrilla Tactics School to increase a soldier's chances of bleeding out when their HP reaches zero. Also, from the Avenger, you can check out the Memorial, which shows a list of all of the soldiers who have fallen in battle. Obviously you want that list to remain empty in order to get this trophy so feel free to check it if you're in the middle of the game and can't remember if you lost a soldier at any point.

See the "Tips for Surviving XCOM 2" section of the Road Map for more information: LINK