So 2 Hunters are Fighting...

...one hits Deterrence and attempts to use Scare Beast on the other's hunter...

...If the first hunter hits Silencing Shot, does it:

-Go through and interrupt the hunter, bypassing the 100% miss chance since it's "guaranteed to hit"
or
-Miss, since 100% miss > "guaranteed to hit" ?

Apologies if there's a thread on this already.
silence shot will be deflected.

...one hits Deterrence and attempts to use Scare Beast on the other's hunter...

...If the first hunter hits Silencing Shot, does it:

-Go through and interrupt the hunter, bypassing the 100% miss chance since it's "guaranteed to hit"
or
-Miss, since 100% miss > "guaranteed to hit" ?

Apologies if there's a thread on this already.

The interrupt abilities probably have something like +300% hit and 60 expertise or something to ignore these things. Unless they have less than 100% extra hit, it can/will go through deterrence. Deterrence only increases melee and ranged miss by 100%. You can theoretically hit a rogue with non-binary spells through CoS if you had 130% spell hit.
Scare Beast never begins casting. Have to target a beast.

The interrupt abilities probably have something like +300% hit and 60 expertise or something to ignore these things. Unless they have less than 100% extra hit, it can/will go through deterrence. Deterrence only increases melee and ranged miss by 100%. You can theoretically hit a rogue with non-binary spells through CoS if you had 130% spell hit.

Wow, please dont give advice if you have no idea about what you are talking about. Im pretty sure most everything you said is wrong.