Core · Weapon · Rules

If a Squad receives at least as many hits from Weapons with Smoke during a single activation as it has Units, place an Obscured Status Token on that Squad. Squads with Obscured Status Tokens are Obscured. This Weapon may target friendly Units and may target its own Unit.

Source: Dropzone Commander Rulebook 3.02 · 3.02 · p. 50 · weapon-special-rules