1. XCOM 2 Achievements
  2. Excalibur achievement
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Excalibur achievement in XCOM 2

Excalibur

Completely upgrade a beam weapon with superior grade weapon upgrades

Excalibur0
Offline Mode - These achievements require play in game modes that do not necessitate a connection to any online services.Single Player - These achievements can be obtained by a single player.Missable - These achievements can be missed.Shop - These achievements require the purchase of an item or a series of items as prerequisites from a shop.

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