Is it possible to have Us cellular to unlock my LG G3 and then will it work with straight talk?

[AC Question]

Is it possible to have Us cellular to unlock my Lg G3 and then will it work with straight talk?

I have a Us cellular Lg G3. I used straight talk's BYOP compatibility check and it said it won't work. I called customer service and they said Us cellular phones do not work with them because they are locked to that network. If i am able to have US cellular unlock the phone from it's network , would it then work with any of straight talk's at&t, sprint, tmobile or verizon SIM cards ? I know US cellular is cdma, but it has a simcard slot for their 4g lite network.