As I said, FM Crusader Clans and Warden Clans- and the mentioned Regulan Hussars which is listed as Questionable due to their opinion on the Mariks and why the FWLM places them at the bottom of the supply list.
But let's see . . .
FCCW, pg 207- Fanatical (to supplying faction) receives a +2 on rolls for replacement personnel & equipment. Questionable (same terms) receives a -1 on the rolls.
A newly established mercenary command (less than three
years old), or one that has breached at least one of its past ten
contracts, automatically receives a Questionable reliability rating.
Otherwise, they are considered Reliable. Mercenary commands
that successfully carry out five consecutive offensive contracts for
the same employer increase their reliability rating by one level
(from Questionable to Reliable, or from Reliable to Fanatical).
FM Merc (R) pg 171
Start of 1st Regulan Hussars entry
The attitude of the LCCC toward what is arguably one of the finest fighting units in the Free Worlds League can best be described as ambivalent. While the First Hussars have remained unswerving in their service to the person and office of the Captain-General, the recent reforms intended to centralize and standardize the militaries of the League run contrary to their deep commitment to the fundamental sovereignty of the Principality of Regulus. Though no Regulan Hussar has refused to obey a command, they have been glacially slow in adopting the new reorganization policies.
First full paragraph right column
The LCCC considers the loyalty of the First Regulan Hussars to be questionable at best. They routinely withhold new or recovered technology and seldom honor requisitions. The deficit in supply is made up by the Prince of Regulus, while the lack of tech support has forced the Hussars to become masters of independent self-support.
ER 3052, pg 36
Loyalty Ratings do not indicate loyalty to the Clan; no true warrior holds anything less than fanatical devotion to his or her Clan's interests. Rather, loyalty represents a unit's devotion to the Warden ideals espoused by all the Clans described in this document. Questionable units may be those under close scrutiny, but in almost all circumstances can still be trusted to perform at their best for their Clan.
FM Warden Clans pg 19, last paragraph
FREX, pg 69 Diamond Shark's 42nd Combined Strike Cluster is Vet/Ques b/c the staunchest Crusaders in that galaxy have collected in that cluster
Warden Wolves' 6th Wolf Guards are Elite/Ques b/c they are the isorla cluster from Op Bulldog
Loyalty Ratings do not indicate loyalty to the Clan; no true warrior holds anything less than fanatical devotion to his or her Clan's interests. Rather, loyalty represents a unit's devotion to the Crusader ideals espoused by all the Clans described in this document. Questionable units may be those under close scrutiny, but in almost all circumstances can still be trusted to perform at their best for their Clan.
FM Crusader Clans pg 18, last paragraph