Here’s my reconstructed DefCon Checklist, for now:

DefCon Checklist

DefCon 5: There is peace throughout the kingdom.
DefCon 4: Hostilities may commence within 72 hours.
DefCon 3: Hostilities may commence within 48 hours.
DefCon 2: Hostilities may commence within 24 hours.
DefCom 1: Hostilities may commence imminently.

DefCon 5: (Normal times)
Maintain the normal pace of everyday life.
Keep building preps and skill levels.

DefCon 4: (72hr warning)
Keep gas tanks above the 1/2 full level.
Make a plan to construct a shelter in the ground or within your home.
Inventory all preps.
Inventory all survival equipment.
Maintain normal schedules for family and self.

DefCon 3: (48 hours warning)
Top off all gas tanks, propane tanks.

Top off food and water supplies.

Postpone any immediate vacations or out of town trips. Reprioritize or reschedule unnecessary events except for medical requirements, and work requirements.

Load camper with potable water, 4 sets of clothes for each person, additional camping gear/supplies, portable lift, DD1 hygiene supplies, Intel files,

Load truck with cargo rack/chairs, genset, propane fuel, battle rattle, 2 day hiking packs,

Move into home: MOPP Gear, emergency food stores,
Prep for relocating: financial records,

DefCon 2 (24 hr warning):
Monitor Current Events
General: top off all gas tanks and cans,

Move to Camper: all emergency cash, financial records, ready hygiene supplies for DD1. All emergency meds, field FAK's, load bicycle,

Home: box all food supplies, Clean all weps, move camper stove & fuels into home, relocate air filtration to home, bring older lift inside,

DefCon 1 (Nuclear attack imminent):
Monitor Current Events

Truck: Load gas stocks,

Home: install air filtration system, have weps ready for skirmishing, construct in home shelter in Living room,

Camper: standing by in case bugging out becomes necessary

PRIORITY TARGETS:

What are the priority nuclear targets in any country?

Priority 1: Strategic military installations (missile launch facilities, communications centers, command centers, 5,000 ft or longer runways, etc), Naval ports,

Priority 2: State capitals, major terrestrial transportation junctions (Rivers, canals, ports, interstates, railroads),

Priority 3: Tactical support bases, major metropolitan centers, major manufacturing centers, refineries,

Priority 4:
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QMC, USCG (Ret)
The best luck is what you make yourself!