1. This is an old bug!

    Players raid the first floor of a house, then they crouch in the first floor and jump, when the jump is about to reach its highest point, they release the crouch button(left ctrl) and boom they bug and see for a few seconds through the next floor of the house and even get permission on a tool cupboard if they find it using this bug.

    any way to block this ?
     
  2. Not sure it can be done without ruining server performance.