No Cover
Aerial | Berserk | Booty | Camouflage | Chain of Command | Climbing Plus | Combat Instinct | Combat Jump | Commlink | Courage | Counterintelligence | Cyberplug | Decoy | Doctor | Dogged | Engineer | Explode | Exrah | Forward Deployment | Forward Observer | Frenzy | FT Master | G: Jumper | Guard | Hacker | Hidden Deployment | Immunity | Impersonation | Impetuous | Infiltration | Inspiring Leadership | Journalist | Lieutenant | Limited Cover | Marksmanship | Martial Arts | MetaChemistry | Mimetism | Minelayer | Mnemonica | Morpho-Scan | Natural Born Warrior | NCO | Neurocinetics | No Cover | No Wound Incapacitation | Non-Hackable | Number 2 | Parachutist | Paramedic | Peripheral | Protheion | Regeneration | Religious Troop | Remdriver | Remote Presence | Request Reinforcements | Sapper | Sensor | Shasvastii | Sixth Sense | Specialist Operative | Stealth | Strategic Deployment | Strategos | Super-Jump | Surprise Attack | Tactical Awareness | TAGCom | Tech-Recovery | Technorganic | Terrain | Total Reaction | Transmutation | Triangulated Fire | Vulnerability | Warhorse
For a variety of reasons (agility, size, training...), the Trooper cannot benefit from any of the MODs granted by Partial Cover.
NO COVER
AUTOMATIC SKILL
Sibylla's Advice
Keep in mind that the most severe restriction always applies. If a No Cover Trooper also has Limited Cover due to another rule or Skill, the No Cover Skill will still apply.