Invasion From Outer Space: Cloaked Martian Scouts (2011)

A one page rules supplement and a pack of 9 translucent blue Martian Scouts that can be added to any existing Invasion From Outer Space scenario. The Scouts are deployed via a new Command Console Button (Cost=1) and are removed from the game when killed. Once deployed, Scouts behave as normal martians but with the following special abilities:

Scouts may move 2 spaces per turn.
The Scout's Ray Gun always hits on 3+.
Scouts ignore any wound on a roll of 4+ (except those from fire or explosives).
Scouts do not count as a Martian Pack when rolling for reinforcements.

The back side of the rules supplement contains a new scenario "The Beacon" in which the Martian player attempts to secure three buildings and install homing devices in them. If they succeed, the beacon is triggered and a full scale invasion of earth commences.