Modder finds and fixes typo in Aliens: Colonial Marines that caused bad Xenomorph AI

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The only good bug is a dead bug

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History has not been kind to Aliens: Colonial Marines, and today’s story doesn’t exactly improve its shoddy reputation. As spotted on , a modder attempting to Colonial Marines found an issue in the game’s .ini file causing Xenomorphs to act, well, stupid. You remember the reviews. You remember that . The aliens’ behavior was a big sticking point back in 2013.

It might sound wild, but fixing a typo in a text file is seemingly all that’s needed to improve how Xenomorphs act in Colonial Marines. Here’s how modder jamesdickinson963 :

Ins🧸ide your games config file (My Document\My Games\Aliens Colonial Marines\PecanGame\Config\PecanEngine.ini) is the following line of code :

ClassRemapping=PecanGame.PecanSeqAct_AttachXenoToTether -> PecanGame.PecanSeqAct_AttachPawnToTeather

I’m sure you’ll notice the spelling mistake.

ClassRemapping=PecanGame.PecanSeqAct_AttachXenoToTether -> PecanGame.PecanSeqAct_AttachPawnToTether

If you fix it to look like the above and then play the game, the difference is pre𝓡tty crazy!

Why is this line important? There are two reasons:
1) AttachXenoToTeather doesn’t do anything. It’s basically empty or stripped.
2) AttachPawnToTether does AL♍OT. It༺ controls tactical position adjustment, patrolling, and target zoning.

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)

Whenever the game trꦓied to do this, nothing happened. Now it does!

Of course, the tweak isn’t some silver bullet that automatically fixes the entire game and flips the script, but the results are noticeable. Times like this remind me why I never got into 🗹co﷽ding.

[ResetEra — Thanks, Kristofer]


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Jordan Devore
Jordan is a founding member of Destructoid and poster of seemingly random pictures. They are anything but random.