Adaptation: When taking damage, soldier will gain stacking resistance to that damage type until the end of the mission. Supercompensation: if critically wounded, soldier's maximum Health will be increased by 1. Soldier will require extra time to recover. Triggers once per tactical mission.

• Category = Chest
  
• Cost (Rookie, Veteran, Commander, Legend) = { 45, 45, 65, 65 } Supplies
  
• Requirement = Alien Biotech research

Upon taking lethal damage, this soldier will begin bleeding out. They will remain conscious, but they will die if they are not Stabilizied or evacuated within a few turns.

• Category = Chest
  
• Cost (Rookie, Veteran, Commander, Legend) = { 55, 55, 65, 75 } Supplies
  
• Requirement = Alien Biotech research

Taking damage will cause this soldier to enter berserker rage and attack enemies in sight.

• Category = Skin
  
• Cost (Rookie, Veteran, Commander, Legend):
  
  • { 55, 55, 65, 75 } Supplies
    
  • { 2, 2, 2, 3 } Berserker Corpses
• Requirement = Berserker Autopsy research

This soldier cannot be targeted or affect by any psionic abilities, inclduing those from allied sources.

• Category = Brain
  
• Cost (Rookie, Veteran, Commander, Legend) = { 55, 55, 65, 75 } Supplies
  
• Requirement = Psionics research

This soldier receives a large bonus to Psi Offense, but cannot contain the power, and at the end of turn will damage all units within 2 tiles, including allies. Solace and Mind Shield will suppress this effect.

• Category = Brain
  
• Cost (Rookie, Veteran, Commander, Legend):
  
  • { 45, 45, 55, 60 } Supplies
    
  • { 2, 2, 2, 3 } Sectoid Corpses
• Requirement = Sectoid Autopsy research

This soldier receives a large bonus to Mobility, but moving will make the soldier gradually lose the bonus, and even transform it into a penalty. Lost mobility is gradually recovered each turn the soldier doesn't move.

• Category = Legs
  
• Cost (Rookie, Veteran, Commander, Legend) = { 50, 50, 60, 70 } Supplies
  
• Requirement = Alien Biotech research

Soldier gains +20 Dodge, and when Dodging enemy attacks, they will move out of the way of the attack, completely avoid the damage. Triggers once per turn.

• Category = Legs
  
• Cost (Rookie, Veteran, Commander, Legend):
  
  • { 40, 40, 50, 55 } Supplies
    
  • { 2, 2, 2, 3 } Viper Corpses
• Requirement = Viper Autopsy research