Read the body and the armor
A downed Gear is in immediate danger
The developer walkthrough explicitly warns that a Wretch can execute a player who is down but not out. Small size does not make it harmless when a teammate is on the ground.[2]
Those priorities are tactical suggestions based on the confirmed execution and scream mechanics. Exact damage, scream radius and difficulty-specific health are not supplied by these announcements.
Why the squad calls them Crawlers
In the August preview, Wretches move along the underside of a bridge and a nearby squad calls them Crawlers. The nickname reflects soldiers naming unfamiliar creatures by what they see them do.[4]
For upright armed infantry, use the Drone guide. For the wider roster, use the Locust Field Guide.
