Well thursday was L4D2 and I finished every round in just around 45 secs and I mean just about. The time were something like: 45,2/45,3/44,9/45,1/45,2 but it felt good.
Sunday was L4D3 and I got it done in 4:28
. It paid of staying on at lvl4 and am now looking forward to lvl 5.
Thanks for the advice Ruli. I might have skipped to lvl5 last week, but I feel more confident now.