The way Stats (UT,HP,STR,PRE,RFL,BRA) increase should be changed:
-not requiring specific action (spend UT,shoot,reflex shoot, carry heavy gear, panic) forcing annoying grind kinda necessarry if you like to min/max (use smoke/reaction fire until all the team has shot vs a single alien to raise RFL and suppress whole team with LMG several turn to panic the team and raise BRV).
- HP gain should be also granted on injury: Hp actually increasing with other stats means that if a soldier begin with a HP score below his average others stats (UT,STR,PRE,RFL,BRA), he can't raise his HP to max (making him undesirable in the long run) which is kinda annoying.
Also add some way to customize soldier a bit: aving the option to change a soldier portrait would be nice (some are really awfull for my taste).