Article Barely Functional Xenomorph AI In 'Aliens: Colonial Marines' Due To Single Typo

Christopher M
Published
July 18, 2018, 02:37amEDT
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Information related to a relatively unknown bug affecting the Xenomorphs in the game Aliens: Colonial Marines was recently thrown into the spotlight. Many critics and gamers criticized the game for having a barely functional Xenomorph artificial intelligence among other things. Gaming commentator SidAlpha asserted this about the A.I., that, "people in some missions [were] able to run straight through the waiting Xenos with nothing at all happening and actually being able to complete those levels without firing a single shot."

ClassRemapping=PecanGame.PecanSeqAct_AttachXenoToTether -> PecanGame.PecanSeqAct_AttachPawnToTeather

Above is the line of code in question. Notice that there is an added "a" to "Tether" in the second half of the line of code. That added "a" is what cause the Xenomorph to not properly behave in the game.

Moddb user jamesdickinson963, the bug's discoverer, explains why,"When a Xeno is spawned, it is attached to a zone tether. This zone tells the Xeno what area is its fighting space and where different exits are. In Combat, a Xeno will be forced to switch to a new tether (such as one behind you) so as to flank, or disperse so they aren't so grouped up etc. (*disclaimer* this is inferred opinion, I can[']t see the actual code only bits)"

In short, the Xenomorph's A.I. was unable to receive information about the surrounding environment. Without that information the Xenomorphs couldn't find stealthy alternative routes around the player, such as vents.

jamesdickinson963 found the typo while going through some of the game's files in development of a mod back in October of last year. Later sharing the information via a news post on the Moddb page for his mod TemplarGFX's the Aliens: Colonial Marines Overhaul.

It is currently unknown if Gearbox Software, the game's developer, will release a patch to fix the Xenomorph's A.I. tethering issue.

The full instructions by jamesdickinson963 on how to fix the bug yourself can be found here.

Copyright © 2018 Fotisi. All Rights Reserved.
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