found some info from dice in this pdf linked https://eaassets-a.akamaihd.net/dice-commerce/battlefield4/assets/patch_notes/HighTickrat_BETA_R1_R4_DS.pdf
This also gives explained the new icons for netcode we see on our screens that popup,
"The key aspect of this BETA is that you, the players...
I love lockers and its always full but would love to see it switched up and I would play in in a server that has. One round Conquest Large, Second Round Obliteration, Third Round Rush, then rotate. Spice things up a little bit. I think it populate.:thumbup1: