Playing on 4g LTE Mobile Broadband

I'm undergoing training at AIT currently, and apparently my barracks does not provide internet service. However, I'd still like to play my favorite game, and the only game I play anymore League of Legends so I've been trying to figure out how I'm gunna make it work.

I quickly ran into mobile broadband. The issue there is its more expensive then home broadband and the latency would definitely not be as great as I might want or need it to be. I was thinking I could get a good device and purchase an antenna for it so the latency improves.

I also went ahead and looked up data/match and came to the conclusion that it's an estimated 50-100MB/match. I'm pretty sure I could play at least 10 matches/GB of data. I'd probably only play 10 matches in a whole week so I should be fine with 4GB dedicated to playing matches. I should add another 2GB for the patches, and probably another 4GB for browsing (no streaming). So I should be ok with only 10GB of data.

With a good device such as the Verizon jetpack MiFi 6620L + an antenna for better latency, do you think my ping could be <150? My coverage with Verizon on my Samsung Galaxy S5 is 4G LTE 2/4 bars with 17/2 Mbps.

TL;DR: Has anyone ever played LoL on a 4G LTE Mobile Broadband network? Do you think 10GB of data is plenty enough for both playing approx. 40 matches/month (10/wk) and doing regular browsing (no streaming)? With a good device such as the Verizon jetpack MiFi 6620L + an antenna for better latency, do you think my ping could be <150? My coverage with Verizon on my Samsung Galaxy S5 is 4G LTE 2/4 bars with 17/2 Mbps.