'Mutual combat' - is this a felony or misdemeanor? What is the punishment? Are all parties involved charged with 'MC'?

The charge you are referring to seems to obviously be one of the variants of Simple Assault. Simple Assault is most commonly graded as a Misdemeanor 2 punishable by up to two (2) years incarceration. One of the exceptions to that is "mutual consent" in which both participants are fighting the other. This form is graded as a Misdemeanor 3 punishable by up to one year incarceration. It is NOT a felony. The interplay between this question and the one you posted after this one is not clear. This new charge may be the reason he is having a problem with Probation. I stand by my response to your other question with respect to both. He needs the assistance of counsel. The only lawyer who can really provide any help is one who "is on the ground" in your area. The Internet is not going to directly help your husband. Good luck.

I agree with Mr. Jones. Only someone who knows all of the facts, not just those you have posted, is going to be able to give the full advice that your husband needs.