XCOM 2 achievements
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XCOM 2

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There are a maximum of 80 XCOM 2 achievements (50 without DLC) worth 5,405 (1,520)

12,593 tracked gamers have this game, 69 have completed it (0.55%)

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3.9 from 15 votes

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Achievement Details

Regicide in XCOM 2

Regicide74 (30)

Kill an alien ruler the first time you encounter it

  • Unlocked by 1,171 tracked gamers (29% - TA Ratio = 2.46) 4,031  

Achievement Guide for Regicide

AuthorSolution
Lt Davo
124,444 (59,975)
Lt Davo
Achievement won on 16 Oct 16
TA Score for this game: 5,134
Posted on 16 October 16 at 19:44, Edited on 16 November 16 at 16:26
This solution has 7 positive votes and 0 negative votes. Please log in to vote.
First, let's talk about the easy way that does involve a roll of the dice, but when it works, it works like a charm: repeater mods. If you're going on the mission where Bradford insists on going on the squad, you're guaranteed to meet an alien ruler. Give everyone on your squad repeater mods. Every time someone shoots his or her gun and gets a hit, you have a 5 to 15 percent chance (depending on the mod level) of executing the ruler dead and unlocking the achievement. If you don't get it on that mission, keep your repeaters equipped until you've met all three of the rulers.

Now, let's talk about other sound tactics that will improve your odds without relying solely on repeater percentages. There are a lot, and this is by no means an exhaustive list, but here are some:

- At the beginning of the game, check the box to play the Alien Hunters DLC. If you don't, the rulers will still attack you, but they will begin on their schedule, not yours. If you do, you can wait until you're ready to meet the Viper King.

- When you start meeting the rulers, take along a psi operative. His Stasis ability is HUGE because it allows you to position your squad, reload, heal, etc. without allowing the ruler a reaction every time. This is super huge when the Archon King charges his Blazing Funyuns attack. Slap him in stasis and let everyone underneath him get away.

- You need to take down the armor quickly. Acid grenades, plasma grenades, frag grenades, and the grenadier's Shredder ability all do this. A grenadier spec'd with Shred, Heavy Ordnance, Volatile Mix, and Salvo and supplied with acid and plasma grenades can get you off to a good start.

- Being able to deal persistent damage also helps a lot. Acid grenades, incendiary grenades, dragon rounds, poison rounds, etc. wear down the ruler every time he or she takes an action, not every time you take a turn, so their damage dealt is much higher than with ordinary enemies. Also, if the archon king grabs one of your soldiers while under a damage effect, he'll drop him automatically, so that's one less thing for you to worry about.

- Being able to deal guaranteed damage helps when the Viper King has bound one of your soldiers or the Archon King has taken one of them. Combat Protocol, Soulfire, and stock mods are ways of dealing guaranteed damage.

- Abilities that don't cost an action, such as the ranger's Ax Throw and the gunslinger's Lightning Hands, also don't cause a ruler reaction.

- If the ruler is the only enemy on the screen and you don't have any good moves left - only low-percentage shots from weak weapons - end your turn using the Menu button on your controller (what used to be the Back button on the 360 controller). The ruler will get an "Alien Activity" turn against you, but the results are no different from what they would be from a "Ruler Reaction" turn, and you'll be able to use your heavy hitters again.

In the end, though, if you use repeater mods, you're probably going to unlock the achievement with them instead of by any other tactics one can come up with.

EDIT: On a new Legend playthrough, I killed the Viper King the first time I met him in Vahlen's cave. As soon as he came out, I lobbed an acid grenade on him, and applied Rupture to him on my second attack. After my third attack, he had already had enough and tried to bail. He opened a portal, but then he didn't use it. Instead, after my next attack, he closed that portal and opened another one. He did the same thing on my next attack. I'm not sure, but I think the pool of acid surrounding him (and causing 4 damage with every reaction) was preventing him from using the portals he was opening. I was able to kill him not just in our first meeting, but in my first turn of our first meeting. Acid grenades!
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Hirsute Dave
153,156 (92,715)
Hirsute Dave
Achievement won on 19 Sep 17
TA Score for this game: 2,008
Posted on 19 September 17 at 12:46, Edited on 19 September 17 at 12:48
New solutionThis solution has 0 positive votes and 0 negative votes. Please log in to vote.
War of the Chosen has opened up another reasonably easy option for this achievement. The Reaper hero unit (you'll get "Outrider" for free after completing the "Lost and Abandoned" mission) has access to the Banish ability once they reach the rank of major. Banish allows the Reaper to continue to fire at a target until it's dead or they run out of ammo. (There's also an upgraded version at colonel rank but that's not a requirement).

So it's just a matter of making sure you have your Reaper with you when you're expecting to run into a ruler - generally when assaulting an avatar facility - and having a full clip good to go. You can tip this in your favour by upgrading their vektor with either an auto-loader or an extended magazine (either will work but the extended mag is probably better).

On the off chance this doesn't kill the ruler outright, it should be weak enough that conventional attacks by the rest of your squad will finish it off. Alternately, you can soften up the ruler before you unleash the Banish attack just to make sure (any armour shredding is a plus).
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