I played a game of One Flag CTF on Highlands today. My team defended the flag so well that the opposing team didn’t even walk through the flag in both rounds. However, my achievement never popped up. This happen to anyone else? (I have video evidence in my file share.)
I’ve heard of this problem before, are you sure you didn’t receive the achievement? Perhaps it just didn’t pop on-screen. If this isn’t the case, I’d just make sure you’re on a Defiant map, playing a 1-Flag CTF game, and try again.
If there was a host migration, you’re out of luck. 