(You mentioned Rich Franklin so I assume your doing this for MMA or Wrestling)
Ok before you get the wrong information and this becomes a bad thread this is the most logical way to look at it and most wrestling/mma/kickboxing coachs view it the same way.
Will you ever fight someone for a hour ? the answer I hope is no.
The longest you will ever fight someone is for 25 mins, 5 rounds of 5 minutes, with breaks every 5 minutes, i.e your cardio should reflect the same.
Tireflips for 5 minutes, 1-2 minutes rest
Interval training 5 minutes of heavy bag punch/kick outs, 5-10 minutes of jumping rope
Underwater laps in a pool, swim the length on a breath, rest for a minute and repeat
If you have access to a rock wall, 5 minutes of climbing, 5-10 minutes of jumping rope
If you conditioned enough all of these examples with the exception of the swimming can be down with a nose clamp and snorkel.
The logic behind this is that fighting/wrestling is anerobic and not aerobic, and before you ask, Yes a high amount of anerobic activity does carry over to aerobic activity but the reverse does not happen.
Another alternative or addition to cardio training for a fighter is not breathing thru a set, make the environment your doing the set in extremely anerobic.
Hope this helps