None of that alters the fact it'll contradict 'Aliens
' if Weyland's responsible for the Colonial Marines.
And, really, I'd regard it as a cliché too far if they ever did
try to portray that. It's already a bit dodgy that they're apparently showing power loaders and proto-pulse rifles as being invented by Weyland. The whole point
of capitalism is that there's corporate diversity and competition. Right now, it's starting to look like they're the only company in existence on the planet.