p. 48
"Mimetic armors are similar to Stealth systems (see Stealth (STL), p. 48), in that they make a target more difficult to hit with weapon attacks. Unlike Stealth, the modifiers for mimetic armor are based not on the unit’s type and its range, but by the unit’s type and how far it moved in the current turn’s Movement Phase. (Once again, these modifiers do not affect physical attacks against such units.)
For attacks made against non-infantry targets with the MAS special, apply an additional +3 to-hit modifier if the unit moved 0 inches in the Movement Phase, dropping to +2 to-hit if the unit moved up to 5 inches, +1 if the unit moved from 5 to 12 inches, and losing the modifier entirely if the unit moved more than 12 inches.
For attacks made against battle armor targets with the MAS special, apply an additional +3 to-hit modifier if the unit moved 0 inches in the Movement Phase, dropping to +2 to-hit if the unit moved up to 2 inches, +1 if the unit moved from 2 to 5 inches, and losing the modifier entirely if the unit moved more than 5 inches.
A unit equipped with the LMAS special applies only a +2 to-hit modifier if it moved 0 inches, and +1 if it moved up to 2 inches."
Change to:
"Mimetic armors are similar to Stealth systems (see Stealth (STL), p. 48), in that they make a target more difficult to hit with weapon attacks. Unlike Stealth, the modifiers for mimetic armor are based on hiding a stationary unit. (Once again, these modifiers do not affect physical attacks against such units.)
For any unit with the MAS special ability, during the Movement Phase, the unit may choose to not move (including no change of facing), in order to put a mark next to the MAS to have it active. For attacks made against targets with the MAS special active, the target replaces its standard target movement modifier with a +3 to-hit modifier from the MAS. LMAS works the same as MAS except with a +2 to-hit modifier. The active mark is removed during the End Phase."