Yes, a witch can train musket epics like overwatch and burst fire and/or receive them from a pet. However, this isn't optimal for pvp (which is what I assume you are referring to, as this is the pvp subforum). If you're a witchdoctor, you have 2 types "optimally competitive" weapons.

The first is the Nefarious Staff, and when you hit Champion, the Fall Champ Weapon. Both of these have a set of powerful summons that impede opposing movement, do solid chip damage (even better with a beast banner), and have effective defensive epic talents.

The second is a long range wand like Moo Manchu or Phule's Wand (6 range). This helps you gain a range advantage in matchups where summons are less effective (generally ranged classes that have a bevy of AOE attacks/overwatch/readied to shred your summons).

With a hybrid shooty/staff witch hunter, you arguably get the worst of both worlds. You lack the powerful summons of the first option and lack the 5-6 range of the second. Your epic chains will be very ineffective against ranged opponents. They can just sit outside of your 4 attack range (the orb has 3, plus 1 from spirit sight) and barrage you with AOEs, or in the case of normal muskets, basic attacks.

Against melee opponents, your chains will do terrifying damage, but your low accuracy will make it very easy to dodge your approach-based epics (forcing you to almost always have a stat buff up to increase crit chances). In addition, they can just hide their pirate and/or units, bypassing your epics entirely. They can do this very quickly since the summons you would usually have to slow them down are no longer present.

Also, as a side note, the Orb of Nefarious Death will boost off of will for witchdoctors. These weapons can boost off of two damage types (in this case, agility AND will). It will choose the higher of the two, which, for a witch, is will.

BrandBrandPowers12... on Jan 14, 2019 wrote:

If i was a musketeer, would it work if i had mojo echo, and relentless WITH burst fire? Because i seen a musketeer’s pet who had both relentless and burst fire, and I thought perhaps it could be a good shot

That would work if you had a shooty/melee weapon, and for Witchdoctor and Musketeer Epics, a Shooty/Staffy Weapon. If you don't have or want that combination, then it's completely pointless.

Ya, i think they do ,but i can't be certain.

Matthew525011 on Jan 14, 2019 wrote:

Yes, a witch can train musket epics like overwatch and burst fire and/or receive them from a pet. However, this isn't optimal for pvp (which is what I assume you are referring to, as this is the pvp subforum). If you're a witchdoctor, you have 2 types "optimally competitive" weapons.

The first is the Nefarious Staff, and when you hit Champion, the Fall Champ Weapon. Both of these have a set of powerful summons that impede opposing movement, do solid chip damage (even better with a beast banner), and have effective defensive epic talents.

The second is a long range wand like Moo Manchu or Phule's Wand (6 range). This helps you gain a range advantage in matchups where summons are less effective (generally ranged classes that have a bevy of AOE attacks/overwatch/readied to shred your summons).

With a hybrid shooty/staff witch hunter, you arguably get the worst of both worlds. You lack the powerful summons of the first option and lack the 5-6 range of the second. Your epic chains will be very ineffective against ranged opponents. They can just sit outside of your 4 attack range (the orb has 3, plus 1 from spirit sight) and barrage you with AOEs, or in the case of normal muskets, basic attacks.

Against melee opponents, your chains will do terrifying damage, but your low accuracy will make it very easy to dodge your approach-based epics (forcing you to almost always have a stat buff up to increase crit chances). In addition, they can just hide their pirate and/or units, bypassing your epics entirely. They can do this very quickly since the summons you would usually have to slow them down are no longer present.

Also, as a side note, the Orb of Nefarious Death will boost off of will for witchdoctors. These weapons can boost off of two damage types (in this case, agility AND will). It will choose the higher of the two, which, for a witch, is will.

I think that if this particular musketeer is bought or hired as a henchmen, they could.