Combine Ministrider

the Mini Strider is first seen in Episode One, as part of the force seen attacking the base where Judith Mossman recorded her transmission. The Ministrider was a grey blue in the Episode Onetransmission when viewing it with Alyx due to the Hunter originally being known as a Mini Strider, but in Episode Two when the message is played at White Forest, the Ministrider's model and name was changed to its current state.

In Episode One, typing " " spawns the predecessor of the Hunter. On top of cosmetic differences, the mini-strider also doesn't shoot fléchettes; instead shooting Pulse Ammunition (as seen in an old Episode Two trailer). It is vulnerable to explosives and energy orbs, and can be taken down by normal weaponry, but will take around 300 pulse-rifle rounds to do so. Most of its sounds will not be precached when spawning it, probably because it was supposed to only be scripted for Mossman's message and not meant for combat in Episode One. Unfortunately, the mini-strider can no longer be spawned in Episode One because of the removal of the "npc_ministrider" entity, the actual entity is "npc_furniture". "npc_furniture" is a new variant of the "generic_actor" entity, so when spawned nothing will appear.