My girlfriend and I are going to be moving in together soon. She's a gamer as well and we'll be playing games like COD, BF, and Titanfall all on 360. The best internet speed we can get is Charter at 30mb/4mb. Is this going to be good enough for us to both play at the same time on two 360s? And in the future we'd like to upgrade both of us to Xbox One. Would we be ok with the speed then also? Thanks in advance for your replies.