Good call on the MM Hunter. I was thinking BM Hunter for the burst, but MM Hunter would be better for Team B for outlasting your opponents.

Lets start with map selection: Team A is a classic swap/nuke team. In the span of a GCD, they can bloodlust swap, shatter, and blow someone up. This means that open maps such as RoL and (to a lesser degree)Nagrand favor them as 2 of their dps need LOS. As a BM/Lock/Warrior team, Blade’s Edge or Nagrand are much more favorable than the openness of RoL. Yes, the tomb can be used to LOS casters, but with your only healers being ‘stand and cast’ healers, your players are forced to stand in LOS of each other -and- the opponents (hi standing on the tomb) unlike the other maps.

As for targeting, the main target should be the priest as clothies die quickly to a windfuryRNGlol burst and BW, and because manaburn is going to screw your hunter’s dps and your healers. However, setting this up can be difficult, so swapping back and forth between the priest and the shaman or mage (depending on Water Elemental being out or not) is probably the right call. Force the priest to heal.

As for individual targeting, here’s what I have
Class: Target: Focus Target: Reason
Warrior: Priest: Pally or Mage: for focus intercepts to preven heals or cc
BM Hunter: Priest: Mage: focus viperstings on the dps first to put a time limit on their game. Viper the priest after the mage goes oom.
Warlock: Mage: Any Caster: focus fears/spelllock. The lock should be making sure that CoT is on every caster for the entirety of the match and rotating fears and kiting the warrior through frost traps. Pet should be on mage for pushback, but focus spelllocks on healers can turn the tide.
Pally/Priest: Varies due to healing/mana burning needs: Shaman: the eleshaman directs the burst for all 3 as all they do is stand and cast purge/lightning. Knowing who theyre going to burst means you can start to precast heals.

Since the first target should be the priest, the swap target should be either the mage or the shaman, although any target that gets low from dots can be a legitimate swap target.

Spec wise, on a non 4dps 5′s, most hunters are Marks due to the additional control. Viper into Silencing is deadly if you can cc their poison specific cleansers or force them to heal instead. Forcing the pally to waste gcd’s as opposed to the shaman (cure poison as opposed to cleanse) is a better option as cleanse can hit all the crud magic debuffs as well. You can play this setup as an outlast setup, with 3 forms of mana drain (Viper, Drain Mana, Mortal Strike). A burst style can work with a BM hunter, but your warlock’s burst isnt going to be anywhere as strong as the other two (pain suppression/bop kinda kills 2 physical dps burst).

As for the concept of ‘virtual threat’, many of these classes are ‘high threat’ targets for multiple classes, and as such, really cant be represented by only 1 arrow. The Hunter should be a threat against the Mage, Priest and Warrior, everyone should fear the Lock, the Priest and Mage should fear the Warrior most, and any class that relies on tons of buffs (Mage/Priest) should fear the shaman. Of course, this is really just an issue of class favorability when it comes to individual matchups and honestly it should represent the targeting and strategy used (actual targeting/swap targeting) as any virtual threat should be neutralized so it doesnt become an actual threat.