I think I uderstand the first part: assign the number of areas controlled by GBR [control = all VP locations?], and the action that 'activiates the event'...
But what does the probability statement mean?
Can I 'do math' to adjust/modify the value of esvIntVar0? [like "esvIntVar0 = esvIntVar0+1"]
How many different 'global' variables are there? 'esvIntVar0, 'esvIntVar1...' etc?
SelectFaction = $GBR
CountCtrlAreas = esvIntVar0;$New_England;$Middle_States;$South_Central;$Deep_South
SelectFaction = $USA
SelectFaction = $USA
StartEvent = evt_nam_FrenchRoll_340-341|1|0|NULL|NULL|NULL|NULL
Conditions
MinDate = 1778/04/01
MaxDate = 1778/05/01
[color="Red"]Probability = 15;esvIntVar0;-15[/color]
Actions
ChgEvtOccurs = evt_nam_FrenchEntry;CuOccurs;1
EndEvent