M23 casualties were getting so high while fighting the peacekeepers, they ended up bypassing UN and SADC bases during the Battle of Goma.

M23 won the battle in the end, shows you can just walk around fortified positions if you have a high enough noncredibility rating.

Rwanda/Congo wars are always extremely noncredible. M23 leader has announced their main goal is marching on Kinshasa. It's about ~1.500km away on the other side of Africa. With what logistics? But I don't think it will stop them from trying (and maybe even succeeding)