Not all of them were nutters though . . .
Since they started off as a corporate security force, they had to have SOME presentable members even if they would not be retained by a regular military during a time of peace. Question is where did the corp security go in the 3 formations?
Scourge (Rgt)- Regiment of professionally trained, extremely competitive due to salvage rules, at least 1 CO change happened indicated the former was either captured or dead . . . or as a true merc took her Catapult (LBX & LRMs) elsewhere.
Band of Five (BN)- The depraved, a bunch of thugs given bigger guns- Pyro is the one I remember here
Wyld's Jokers (BN)- heavily infiltrated by Ghost Knights led by Farrell in fiction . . . sounded like a third (One Eye's company?) were Ghost Knight operatives so all their insane backstory was fiction. Bannson's bodyguards were sometimes drawn from this group- like Dagger Di IIRC.
Not to derail but where would I read more about them? I came into the game in the FanPro days and purposefully ignored the Clix storyline until recently...
The best other place, and really more info about the Raiders themselves IMO, is the dossiers that were with the named pieces and CBT provides free at PDF-
https://bg.battletech.com/download/MWDA_Uniques.pdfUnfortunately, you have to scroll through to find the Raiders.