By dissecting a Reticulan's body, we could learn a lot about their anatomy and physiology and use this data in combat.
The Reticulans are physically a weak race, relying mostly on their hi-tech equipment and psionic abilities. They cannot withstand much damage and are easily hurt especially by explosives, on the other hand they are resistant to lasers. They can detect our soldiers with their psionic senses. Our soldiers can be taught which parts of the Reticulan’s bodies are the most effective to hit.