Ah, yes, I remember reading about them and adapting them for ICONS as a team called Ultraforce. I've since adapted them for ICONS as part of the Champions Conversions section that can be located here. They were a xenophobic and trigger-happy team dedicated to protecting the Earth from alien invaders. The Exterminators were armed with powerful but dangerously unreliable weapons and challenged by their lousy aim.
One of my side projects is to adapt them into a 6th Edition version with some subtle character changes that I had incorporated when I converted them for ICONS. They're the following:
Slick - No major change from his original Champions version (Stan Sneiderwind). He's your stereotypical narcissistic, fast-talking conman who's gained success through his smooth-talking and charm. I depict him like Ben Stiller's White Goodman character from the film Dodgeball: A True Underdog Story.
Specs - No major change from his original Champions version (Maxwell Sanders). An intelligent but xenophobically paranoid scientist.
Bruiser - My change is that I made him African American in ethnicity and named him Me'Shell Lister over the original character named Judd. He's still big, strong, and kind of dimwitted but loyal to Slick. I based him off of the character Me'Shell Jones from Ben Stiller's Dodgeball: A True Underdog Story.
Gizmo - My change is that I made him Asian American and named him Dwight Aoki. His skills and role on the team is still the same as his original Champions version, but I portrayed him as a wannabe action hero.
Trekkie - My change is that I made her Latino and named her Silvia Vasquez. Other than that subtle change, she's basically the same as her original Champions version.
You should find them in Alien Enemies (4th Edition), if memory serves. They were a group of four anti-extraterrestrial extremists who went after aliens with plasma throwers. They were much like the Ghostbusters, only xenophobic and not at all funny.
I was watching the clip and my wife, who is a huge football fan, ordered me to change the channel after the 6th or 7th time he referred to himself in the 3rd person....