Sorry if this is a re-post, but I timed out last time I tried and can't find my original...
How about wound levels (say 1-5) and medikits use 1 use per injury level starting with level 2. Multiple use of the kits cannot be used to
fully restore wounded soldiers. One use per injury. So a soldier who sustains a level 3 wound can only be improved once, however, if the same soldier takes additional damage resulting in a level 4 wound, they can be stabilized, or if they took another level 3 wound it could be healed to reduce penalties, but the two wounds would stack for a further reduced TU count, morale, and accuracy. Rendering the soldier less effective than they were with only one wound.
Wounds:
Level 1: Minor HP loss from damage, no wounding, no penalties - Doesn't need treatment.
Level 2: More HP loss, minor loss of movement (TUs or can make normal movement like crouched movement), no wounding damage, and
minor morale loss. - Treatment can fix the TU penalty and boost morale.
Level 3: Significant HP loss, minor wounding damage, major loss of movement, major loss of morale, and penalty to accuracy
(more so with 2 handed weaponry). - Treatment would remove wounding damage, restore some movement (not all),
improve morale and lessen the accuracy penalty.
Level 4: Major HP loss, significant wounding damage, unconsciousness. - Treatment would stabilize injured soldier, barring taking further
damage, but unconsciousness would last until hospital treatment.
Level 5: Critical HP loss, major wound damage, unconsciousness. - Treatment would use up the medikit, and only have a chance to fully
stabilize an injured soldier. Preferrably the field medic should have to stay near the injured soldier, but not sure how that would
implement, so the % chance of losing the soldier even after treatment is an ok way to go.
-Burns77