Kitchen Bleh!! I prefer Holding the entire house. Enemies Spread out more that way once they realize not all of their food is concentrated in one room, and thus have less of an impact on specific windows and doors.
Boarding the kitchen door is done after the 2nd objective is active, thus buying extra time for basement if the kitchen window/door is still intact. From then on it's as simple as cover, objective, pull back to barn, repeat. And in best case scenarios, a human or two pulled backwards up the stairs rather than advancing down to basement initially, while trying not to attract too much attention, they then break the upstairs back window and move to take out the bridge when it falls, leaving the rest of the team to focus on solely the tunnel and eventually the upper barn.
From then on it's just shoot and kill.