It applies per-battle overrides from queue flags. Newbie-flagged battles get zero respawn penalty regardless of the global setting; rank-flagged battles copy the flag into sv_mmBattleRank for rank restrictions. 

function ConfigureDediServerFlags( queueFlags )
  if queueFlags.newbie ~= nil and queueFlags.newbie then
    -- Overrides the game setting for death respawn time penalty. (type: float)
    cvars.sv_respawnTimePenalty = 0
  end
  if queueFlags.rank ~= nil then
    -- Battle rank of the match; affects rank restrictions.
    cvars.sv_mmBattleRank = queueFlags.rank
  end
end
The newbie flag is set on the first arcade/coop bracket (queueFlags = { newbie = 1 }) and the rank flag on sector/league queues (queueFlags = { universe = 1, rank = 15 }).

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3 + 16 =
Solve this simple math problem and enter the result. E.g. for 1+3, enter 4.