Example

--STARTUP SCRIPT, SAVED IN "/Content/<gamename>/Scripts/Startup/"

local FOV = plr_fFOVOverride

local SendFOV = function()
  prj_strCustomOccasion = string.gsub(prj_strCustomOccasion,"{FOVforCWM=.-}","")
  prj_strCustomOccasion = prj_strCustomOccasion.."{FOVforCWM="..FOV.."}"
end

while true do
  Wait(Delay(0.01))
  if (FOV ~= plr_fFOVOverride) then
    FOV = plr_fFOVOverride
    SendFOV()
  end
end

--WORLD SCRIPT, 'READING' THIS

local FOV

RunHandled(WaitForever,

OnEvery(Delay(0.1)),
function()
  local string = prjGetCustomOccasion()
  local config = string.match(string, "{FOVforCWM=.-}")
  if not (config == nil) then
    local arg = string.sub(config,12,-2)
    if not (arg == "") then
      FOV = tonumber(arg)
      if (FOV == -1) then
        if worldGlobals.CWMisBFE then
          FOV = 75
        else
          FOV = 90
        end
      end
    end
  end
end)