How come my achievement wont show up on my profile for my gamer profile?

I passed the first campaign on Left 4 Dead 1 game like 3 times. The 'Mercy Achievement' does not show up, how come?



Xbox 360, L4D1How come my achievement wont show up on my profile for my gamer profile?Ok did you actually play NON STOP??



I mean no breaks. From the start of the chapter 1 to the finale on chapter 5... all in one go ( its ok if you die, you just cant quit and restart later on chapter 3 or whatever )



If you did this... then honesly i have no clue.. thats just bad bad bad luckHow come my achievement wont show up on my profile for my gamer profile?
because they are not real life achievementsHow come my achievement wont show up on my profile for my gamer profile?if no achievements at all show up then check ur online status if u have XBL and make sure ur not set to busyHow come my achievement wont show up on my profile for my gamer profile?
While I do not know the reason for this, maybe if you send a message to STEAM or its forums. They are actually well known for good community support. Good luck anyway.How come my achievement wont show up on my profile for my gamer profile?It's most likely because you either glitched or did some thing your not supposed to.

Even if you beat the campaign too fast sometimes the achievement doesnt come up. Try joining a game on the second chapter - your disc may not read the files and upload correctly ofr chapter 1



Hope it helps-