private void CheckForUnitUnlock()
{
int totalMissionsCompleted = GameMetrics.GetMetric(GameMetricsList.TOTAL_MISSIONS_DONE);
if (UnitUnlockPlan.Unlocks.ContainsKey(totalMissionsCompleted))
{
UnlockUnit(UnitUnlockPlan.Unlocks[totalMissionsCompleted]);
}
}