Partner training is required for movement refinement (putting combinations movements together), Proper depth penetration( closing the gap) and neutralizing the enemy's attack, also for target acquisition.
But, On a BOB or a SparPro, or even just a heavybag, you can work those same combinations with a lot more speed and power without worrying about hurting the partner.
Also doing your PT. Simple calisthenics (Mountain Climbers, Squat Thrusts, Push ups Pull ups, Dips, Sitting Knee Bends/ Ab cruches, dry land swims for the low back [It is still part of the core muscles.], every other day do your Power lifts(Flat Bench Press, Bent Rows, Military Press, Deadlift, Squats, and Barbell Curls). do you runs, the 400 meter and the two to three mile.
if you wish to perform the combinations almost like a kata. Just learn to think ahead incase murphy throws a wrench in.(Learn to change up the combo, when needed.)
Good Luck macavity166