It is good to reach 5 star connection to all the disto centers and camp in Mexico camp before moving to Australia especially with the upgrades that might help you bit. But its not bad either if you do it around episode 5 or 7 and go through the motions of teb story. The story is very good is interesting, but I admit that world building, capturing animals, and deliveries are so addictive. Just balance it out. There will be more objectives and missions to make it easier in reaching 5 star connections on later episides.