List of Combine combat technology in Half-Life 2

Combine Combat Tech
The Combine, since gaining dominance on Earth, has invented a large number of devices and machines, some of which are offensive, and others which are used in the day-to-day policing and surveillance of the general populace. A majority of the Combine's technology on Earth is recycled human technology, modified to fit their purposes. Machines such as helicopters, turrets, flying machines, mines, and wheeled vehicles are all human technologies modified by the Combine.

"Combine Combat Tech is getting worked on, it will be done in a couple of hours or maybe a million years, just come back.