Question [Q] [HELP] T-Mobile rom on Verizon VS980?

I recently switched from Verizon to T-Mobile. Currently I have NamelessROM installed but I can't get LTE, only HSPA+. I tried ParanoidAndroid and could get LTE, but it was extremely spotty and the cell connection went in and out a lot.

So I'm now trying to find a T-Mobile ROM that will work on my Verizon VS980 (or another ROM) that will let me get LTE AND good cell service. I saw this thread (http://forum.xda-developers.com/show....php?t=2606868) but everyone is saying the zip is corrupt and can't be flashed. I've tried searching and have read through numerous threads, but I'm not any further along in finding what I'm looking for.

Any help would be greatly appreciated. Thanks.