Odd achievements registered

[Drumrush7]

I was trying to get the Crash Course achievement for L4D, and my friends we trying to help me with several. For some odd reason, we managed to get wipefest, and the infected team didn't do anything. At the same time, I was trying to get slippery pull for me and a friend. For slippery pull, the one survivor was shooting his AI bots so they wouldn't get in the way. "Try and make them equal" I said. The AI used all the health packs, put them in the red, and killed them quickly. After that, I got wipefest because of it, and the infected team did nothing. It is possible to use the survivor team while you're infected to get wipefest. That's how I got it.

Did you get an achievement that registered oddly?

[BillzNoLongerHere]

I was about to say "L4D story, in the wrong section" but then I couldn't reply with my own L4D2 story:

I've gotten Tank burger despite shooting him on Hard Rain part 2. That was odd. Happened just around the large section of wall before the ramp. He got stuck, and we walked off, came back and he died. DING! Tank Burger. What?

Also, apparently Beat the Rush registered in an odd way, because it sometimes comes up with me having it, and other times not. Pretty annoying seeing as I wonder if this means I can get 100%.

[IrishAssult]

I was about to say "L4D story, in the wrong section" but then I couldn't reply with my own L4D2 story:

I've gotten Tank burger despite shooting him on Hard Rain part 2. That was odd. Happened just around the large section of wall before the ramp. He got stuck, and we walked off, came back and he died. DING! Tank Burger. What?

Also, apparently Beat the Rush registered in an odd way, because it sometimes comes up with me having it, and other times not. Pretty annoying seeing as I wonder if this means I can get 100%.

Like the 3rd day i had left 4 dead 2 i was playing hard rain and the tree house in Chapter 2 of Hard Rain and he got stuck in the tree house so i just kept attacking him with my melee weapon the bots couldnt of done anything since they were stuck at the bottom and the tank was behind a tree

[Drumrush7]

I was also playing the 3rd level of Hard Rain. Our team was going to spawn as the Tank, and it kept changing possession and then I became the Tank. The entire time, Our teams Tank was stuck underneath the map, and couldn't escape.

[Tattered Pants]

Yeah, i think you can get wipefest by killing your teammates. I got it that way. I think it only reads the survivors going down and not how they go down.

[Lt. Aldo Raine]

I got the 'Heartwarmer' achievement by defibrilating Rochelle while she died inside the saferoom. Weird, but I'm not complaining.