it seems these arent valid,got them off a forum post here,all 4 produce errors in .log
#statPrevious - original stats before mission (read only)
#statChange - stats change from exp (read only)
#soldier.Stats - current stats of geoscape soldier, if you change it it will permanently change stats of soldier
#unit.Stats - stats of battle soldier, changed by armor. Only affect current battle.
#unit.Exp - exp grain during battle (read only)
does a list of scripting commands exist?