How it's worded, that rule doesn't apply to a large vent in zm_holdoutmountain_fixed....Basically a one entrance-crouch spot entrance that opens up into a large vent that can fit up to and probably over 7 people if they use the space efficiently. You don't need to crouch in this vent, so you might want to exclusively single out these kind of spots, or adapt the rule. But anyhow, the rule seems to be developing well, hopefully it will spread through the server as mentioned