I'm curious to see what strategy you use and rounds you achieved. Personally i went to 55 (but we activated end game at 54) in coop. We were training in front of double tap for the white player and in the dead end beside for the blue player. It was our first game totally blind and if you want to know more details i recorded full 52 round and you can see it here.

PS: I really liked the map but was a bit disapointed by the easter egg what is a bit too obvious (as i said it was our first game totally blind and we get the table unlocked and the points paid at round 15)

PS2 : Screenshot of the scoreboard at the end