Striders fit both roles well due to their various weapons and remarkable maneuverability on even the harshest terrain granted by their tripodal structure. However, in full-scale military combat, Striders are deployed instead in groups as heavy artillery to destroy all structures in an area to flush out entrenched hostile forces. Individual Striders are often used to patrol off-limits City 17 streets and provide heavy support for groups of soldiers. Its huge size and intimidating weapons make it ideal for suppressing revolutions and preventing large-scale uprisings. The Strider is an excellent example of the Combine's use of Synths to control the population. While walking about or attacking, they produce a host of different electronic vocalizations, such as growls, groans, whoops and howls when killed, they give a mournful cry. In addition, Striders will leak a yellow substance when damaged, and their carapaces contain a biological cerebral unit that looks very much like a larger human brain. They retained a great deal of insectoid traits, such as compound eyes on their heads and fleshy growths on their joints and undersides. Like other Synthetic creatures, Striders are the fusions of organism and machine. Boasting destructive firepower and immense strength, they serve as the Combine's main heavy ground assault units. The Strider is a towering Synth with three slender segmented legs protruding from a sleek brown beetle-like body.

Half life 2