Being able to audible or change things on the fly is one thing fighter pilots are pretty good at.  Adaptability is a skill you should apply to fitness as well.  If you don’t like one of the routines posted or don’t have the equipment, change it to what you like.  I apply this often to cooking as well.  Be creative, be adaptable.

Take a 20-30 minute walk, find a long flight of stairs and climb them twice

Flight Leads
Run 1 mile
Run 3 miles

Weapons Instructor Course
Run 5 miles on a 7 minute per mile pace

 Running 2
Possible substitutions/alternates – Find a cardio machine you like…swimming…bike ride.