He hacked into the Combine survelliance system
He wanted to watch some RAW FUCK while he uses his defanged headcrab (that he refers to as female btw) as a fleshlight, spilling rope after rope.
He caused the Black Mesa incident intentionally, with this being his end goal. He was working with the G-Man the entire time, too.
And he has the same phenotype as the guy that started the "coomer" meme.

>>715237546
Brainlet take. Though the (manufactured) desperation of the situation guaranteed some truly hot, sticky action that one can only dream of.