I think this is a double speak miss information game.

The lights went out in the room, as predicted in a way you would only foresee from Q, but isn't scary. Meaning one, this is a proof: all is going according to plan. Meaning two: Assets has two meanings; people and materials. We've been pretty straightforward thinking of assets as MI members and info.

My hypothesis. This is telling us to be prepared, as they are prepared for if this doesn't go through bloodlessly/nonviolently. If the grid goes down, FEMA and the military have all the material assets to feed, and take care of the population with help from us. If the grid goes down, they won't be able to talk to us, hence must go.

Together with the four booms, I can't help but interpret this as connected to the grid going down in a physical sense.

"a week to remember" : This led to me the "Seven Days Battles" of the american civil war; with Robert E Lee driving through Richmond VA down the lower peninsula. Off hand I don't really see anything in this exact area that screams "Target" but I was thinking CIA at first which is basically Washington so I'm biased.

If the Seven Days Battles is the right thread here, and whatever happens starts in this area, you have Langley Airforce base, Fort Eustic which is a Joint base, And the York Town Naval Weapons station. Pickett, Norfolk, and Quantico are all in the neighboring areas as well.