I bought a hired squad striker....waited a couple of hours for the upgrade button to appear, spent 2 UN credits to have him upgraded. He didn't upgrade and it's been at least 24hours. He also no longer has a visible upgrade button. What can I do to fix this? And nothing annoying like, just get more zombie friends and don't worry about it. The game has a glitch and I want to fix it.
I think the upgrade button comes when you lvl up and then it becomes as strong as the one you can buy for 25 not sure how the % boost works
