His ulterior motives are discovered by Ripley ; his rationale is that the Aliens are an important species they can not exterminate and the facility is a significant investment .
Burke accompanies the squad aboard Sulaco to safeguard the company 's investment in the terraforming colony .
Burke 's ulterior motives are discovered by Ripley ; his rationale is that the Aliens are an important species they can not exterminate and the facility is a significant investment .
Burke accompanies the squad aboard Sulaco to safeguard the company 's investment in the terraforming colony .