Yes, Destiney with Mech Combat resolved with Total Warfare rules. I am hoping that someone had detailed rules about what counts doesn't count for earning or losing dezgra points. Right now its taking a lot of GM engagement because there are a ton of weird corner cases about and it's leaving people pretty unhappy because expectations can't be fully set up front.
Dezgra points. IMO, have no place within an RPG.
You roleplay the combat....and the Clan duelling rules are simple.
Fight your own battles.
You fight your target and noone elses, and they fight you and noone else.
If either, through action or negligence, cause damage to another combatant, if you interfere in another duel, then the entire combat becomes a melee where anything goes.
There are no banned weapons, no banned tactics.
Having said that, warriors and Clans have different likes, different likes, different traditions.
Hang Mehta of the Jaguars hated artillery with a passion. But the Jaguars are also one of the only Clans that...at the time...embraced artillery and had dedicated artillery units.
The Nova Cats loathed LAMs. The Falcons and Jaguars appeared to have no issues with them.
The Ice Hellions have a traditions where light Mechs could hang up on a heavier Mech, before withdrawing to bid for the right of the final kill. This tactic would open up the Trial to a Melee against any other Clan
So...the basic rule of Clan combat is simple.
Fight your own battles
And that really only applies to damage. Starmates can still cooperate...BattleMechs and other combat units share targeting and sensory data for example, and can be used to corral or perform recon or other tasks so long as they don't fire.
But the different flavours and rules vary from warrior to warrior, from Clan to Clan.