system
Given the following post, respond as if you're commenting on Reddit:
human
[Aliens] Why such a incompetent force?

It was pretty clear from the start of Aliens that losing the colony was not an unexpected result of building it right near where they knew the Xenomorphs were nesting. The fact that they were studying the creatures and probably sent tons of reports to Weyland also would of keyed them in on what might of happened when the colony suddenly went dark. 

However, my question is...why such an odd response team? You had an incompetent leader with no actual training in the field, and a gaggle of oddballs that looked like they were either pulled from the court martialing line or were yanked outta bed and shoved into a sleeping pod. 

Weyland clearly has the pull, they clearly have the knowledge of what happened out there and what might of became of the colonist and yet they send an unlucky gaggle of folks with no idea what they're up against minus Ripley.
gpt
It's to underline just how unprepared and outmatched they were for what they were going to find - because that information had been kept from them.  Probably the worst thing they had ever gone up against prior to this was mere humans.