XCOM 2

XCOM 2

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Excalibur

Excalibur

Completely upgrade a beam weapon with superior grade weapon upgrades

24.5%

How to unlock the Excalibur achievement in XCOM 2 - Definitive Guide

Extremely easy, but just in case anyone was wondering: Just add two superior upgrades to a Beam Cannon (which is the top tier cannon).

I would strongly recommed a Superior Scope and a Superior Auto-Loader.

Upgrades can be replaced, but that destroys the old upgrade.
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06 Oct 2016 09:06

3 Comments
Just be aware that not all mods can be combined: you can only mount one type of scope and one type of magazine improvement.

I got mine with a repeater and laser sight mounted on a Storm Gun.
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By Hirsute Dave on 06 Oct 2016 14:17
Good solution; just as a note, if you get the "Armed to the Teeth" continent bonus, which unlocks a third upgrade slot for your squad's weapons, that you will actually need three different superior upgrade - two will not pop the achievement.
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By Minihub on 01 Aug 2018 19:23
Worth mentioning that any top tier weapon works, doesn't have to have "beam" in the title. Unlocked for me with the Storm Gun, presume Plasma Lance would work too.
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By MushaConvoy on 27 Mar 2021 09:22
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There are three tiers of upgrades: Basic, Advanced and Superior. For this trophy, you simply need to equip any beam weapon (requires researching Beam Weapons from Dr. Tygan) with two Superior upgrades. See Locked and Loaded for more information.

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There are three types of modifiers in the game: Normal, modified and improved. We need to weaponize the latter. They can be bought on the Black Market or dropped from aliens towards the end of the game. Important: The game has one bonus per continent, which gives an additional slot for upgrading weapons. If this bonus is activated, you will have to place not two improvements, but three.
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07 Oct 2021 02:44