Source: Achievement Bug: What are you trying to prove?So, for some reason, I decided that I wanted to try to earn this evil achievement. So far I'm completed No Mercy, Death Toll, and Dead Air on expert, but the achievement only lists my progress as 2/4.
After completing No Mercy and Death Toll on expert, the achievement stated my progress as 2/4. After surviving Dead Air in online co-op (my first run), the achievement still displayed 2/4. After putting in the grueling effort to do it again, but in single player, the results were the same.
Way to drop the ball, Valve. Your achievement tracking system is miserable, at best, if it fails to log hours and hours of work for something relatively simple. You must have some amateurs running your SQL tables over there.
Oh, and I had to do the Death Toll campaign twice on expert to get credit for it. Pathetic achievement tracking.
Has Valve even commented on this? Is there any workaround? My assumption is that they're going to ignore it, just like the bugged TF2 stats/achievements, until it is convenient for them to resolve it.
It seems you're not the only one experiencing technical difficulty with the What Are You Trying To Prove achievement, Elihu.
Why do I get the feeling Valve has put fixing this achievement bug right below fixing the TF2 "frontstab" on their list of priorities?