War Machine is High lvl MMA (UFC-class), Soul Collector is not.
War Machine is faster, has better skill / technique (more power on the strikes) and much better cardio.
Soul Collector would look like a slow snail vs War Machine.
If they told War Machine that the prize for winning the fight would be a "Release from Jail"-card, he'd win within 30 seconds for sure.
Soul Collectors skill and cardio (and balance) on display vs a young japanese fighter
Epic lowkick by Soul fella @ 3:53