E1S4,5.1: Removed {NO_ECONOMY} from side 1
E1S4: only ever spawn 1 scorp per turn on any difficulty
E1S4,5.1: text suggestions by le shadowmastah
E1S4: removed obsolete {TURNS_RUNS_OUT} defeat objectives
E1S2,4: kept cave creatures allied with enemy sides
E1S5.1: added commented out scroll_to_leader keys in sides 2 and 3 because apparently modify_side cannot modify that value