Unity heals your squad to full health.
A standard first-aid interface can stabilize a badly-wounded soldier, preventing death from all but the most serious wounds. The base technology, however, is ineffective on conscious soldiers who are currently taking fire, as each pain signal resets the process.
A trauma module separates the medi-gel administration into two layers: active and passive. The active layer constantly distributes small amounts of medi-gel to fresh wound sites. The passive layer handles major deployments to incapacitating wounds. When large amounts of medi-gel are deployed to incapacitated squad members, fighting members are also healed.