Insight I have learned getting Centurion and Shugoki to Rep 3...
Centurion...
Follow up his kick with the light combo. You can finish it or GB after the first or second attack to get into his heavy attack mixups. The 1st heavy can be charged to change the timing, but only the 2nd attack can be charged into an unblockable heavy or unblockable punch. If the punch is fully charged, it results in a knockdown. The just tap heavy attack for a pouncing ground stab. In addition, if the initial heavy is fully charged and it lands - then you can freely charge the knockdown punch and it cannot be avoided. Since most of his attacks are linear stabs, varying the timing and using guard breaks is key. He's pretty overpowered, but not broken.
Shugoki...
Your entire gameplan should revolve around utilizing his armor and buying time until it resets when you don't have it. The best way to do this is to keep opponents in front of you and temper their offense with his headbutt. Landing a jab headbutt combo will keep their stamina low and keep them at a good distance. Its not flashy, but its key. After that, take advantage of opportunities that your armor provides to make them pay for anything they commit to. Shugoki takes increased damage when his armor is down, so use his run to reset things when numbers aren't in your favor.
